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Best Boat Security Systems and Cameras for 2024

Siren 3 Boat Monitoring System

Spot Trace Alert Tracking System

As a boat owner, you didn’t invest in your boat just so you could have it stolen, right? Whether it’s a few hundred bucks for an old fishing boat and hundreds of thousands for a yacht , you have every right to protect what’s yours. That means a solid security system to keep it safe when you’re not around. Let’s take a look at some of the best marine security systems.

If you’re looking for a serious and reliable security system for your boat, then the Siren 3 Pro from Siren Marine has to be on your radar. You’re going to pay a few more dollars for this than your knock off system that can be found on Amazon, but it’s worth it.

As long as you have a mobile device, and who doesn’t these days, the Siren 3 system allows you to monitor, track and even control your vessel remotely. You can keep an eye on critical functions such as how your bilge is holding up and what your battery life looks like.

The GPS locator ensures you always know where your vessel is. This allows for tracking if it either gets stolen or maybe your brother takes it out for the day and doesn’t come back on time.

Onboard controls can be wired to the system as well through two outputs. This can allow you to turn the lights on and off as you desire. You can even turn the AC on before you arrive so you have a cooled down boat before heading out for the day.

There are 9 hardwired inputs and you can connect to up to 15 sensors, but you need to buy those separately. You can mix and match with things like motion sensors, pull sensors and so on to ensure maximum security and coverage.

• Buy on sirenmarine   →
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If you’re looking to meld a great price with great technology, Spot Trace has what you need. Keep in mind, this is not a security system but a tracking system, and we recommend you use both pieces of technology together. A great security system can absolutely prevent theft. However, if something happens and your vessel does get stolen, what next? That’s where Spot Trace comes in.

If your boat moves when it’s not supposed to you’ll instantly receive a notification in the form of an email or a text message. You will then be able to track the progress and position of your boat in real time with Google Maps. No matter where the boat goes, you’ll have updated information on location that can be shared with law enforcement to ensure you get your boat returned as fast as possible.

Tracking is customizable and you can receive updates every 60 minutes or up to every 2.5 minutes if you wish. It works fairly simply upon activation. Spot Trace uses GPS coordinates it receives from the satellite network to determine your boat’s position. It then relays those coordinates to your device.

The system is able to alter you when batteries are low or even when it’s turned off in case someone found it. The units are small and can be discreetly placed on your boat where a thief is unlikely to find them. Mounting brackets or double-sided tape can be used.

Pairing the unit with Spot Trace’s service ensures peace of mind when you have your boat at the dock. The basic services allows for tracking, movement alerts and more. Upgraded tracking ensures that update every 2.5 minutes for the most precise tracking available. This does require entering into a contract with the company, however.

Coverage is available nearly all over the world in offshore areas though inland in places like Asia and Africa may not be available. Battery life while tracking varies depending on functionality but can last anywhere from 3.5 to as much as 156 days.

• Buy on Findmespot   →

Garmin GC 100 Wireless Boat Security Camera

Finding good quality marine cameras is sometimes harder than you’d think. Amazon is full of knock off indoor/outdoor cameras but they are not made for marine use. You can likely get away with an outdoor camera on your boat for a while. But is it the best choice? Likely not. The issue is, of course, the potential moisture not to mention salt a boat camera may have to endure. They need to be tougher than a backyard camera and that’s where Garmin comes in. Garmin works in the marine field and their cameras are designed for this environment.

The GC 100 is a compact camera designed to monitor both interior and exterior of a boat. It can be connected wirelessly to a chartplotter so you can see what the camera sees right away. Any other one on the same network can also hook up to the camera feed. Up to 4 cameras can be viewed simultaneously.

One of the highlights of the GC 100 is that it’s designed to operate in total darkness. That means you can monitor the deck in the dead of night. But, of potential more use, is that you can monitor places like the engine room, no lights required.

Set up is simple and quick. The cameras work wirelessly. The device is hardwired for power. Once installed, it’s literally good to go at the push of a button. The Wi-fi range is 70 meters or about 230 feet. The night vision ability is good for around 3 meters or about 9 feet.

• Buy on Garmin   →

TH Marine Two-Way Boat Alarm

At 128 decibels, no one is going to ignore the alarm of the TH Marine two-way boat alarm when it goes off. You can be alerted up to 3000 yards off when the alarm is activated. It can also transmit up to 1000 yards.

The shock sensor has an adjustable sensitivity setting so you can make tweaks to prevent false alarms, especially if you’re in choppier waters. There are five sensitivity levels and the default is level three.

The alarm system offers three levels of protection and deterrence. The blaring and impossible to ignore sound is one. But the system also offers vibration and light as well to ensure security. Once hooked up to your deck lights they can flash while the alarm sounds. This is very effective at scaring off would be intruders while also allowing others to quickly identify where the problem is when coming to help if need be.

The main engine is waterproof and installation is fairly simple. You can also rest assured that TH Marine offers great customer service if you have any issues. The company has a proven track record of friendly and fast service if any issues pop up.

• Buy on Thmarinesupplies   →

Siren Marine Boat Alarm

When you need something cheap and effective, the Siren Marine alarm may be your best bet. Not a lot of frills and gimmicks here, it’s just a loud alarm. The sound reaches 101 decibels so it’s pretty much impossible to miss when it goes off. The system connects with a single wire in just seconds making installation easy and trouble free.

Because it’s just a simple alarm, it obviously only works when you’re in range. So if your boat is tied up at a home dock or somewhere nearby, this could be ideal. The motion sensor function will trip the alarm if anything moves around in range. The alarm can also be functional when you’re on the boat. It can be set up to detect the presence of water. So if you’re on deck and there’s a problem below, the alarm can notify you before it gets out of hand.

The alarm is easy to use. It can be connected to a Siren Marine app which allows you to switch the alarm on and off. That makes it convenient if it goes off by accident or if you want to set it off for a specific reason. The same app can be used to set it to different modes, like the motion sensor function we already mentioned. It can also be set on a schedule.

Arguably one of the best selling points of the Siren Marine boat alarm is the price. Some of the most complicated security systems can be very expensive as we’ve seen. But if you’re just looking to keep a simple boat safe in a simple boat way, this could be a great option.

The plastic housing is sturdy and also waterproof. The wiring is set for any 12V-80V DC power source. One thing to be aware of is that this needs to be used in conjunction with an MTC or “monitor, track and control” system, like the Siren 3.

• Buy on Sirenmarine   →

Skippers Wireless Boat Security System

The wireless boat security system from Skippers offers a decent system for a decent price. We wouldn’t recommend using this to keep your million dollar yacht secure. But if you have a small fishing boat and you want to add a layer of protection, this is a great choice.

The system is very similar to home security ones you may be familiar with. Once armed, the red light flashes to let you know it’s secure. It also offers a good visual deterrent to would-be thieves.

Connect to a 12 V DC power source to ensure proper functioning and longer life. There is a battery backup in the keypad but it is just that, a backup. Comes with a keyfob remote, motion sensors, and two door/hatch sensors as well. You can set up four programmable zones as well.

The motion sensors can be a little sensitive so you may want to adjust their field of view. Because you’re on the water, if things get choppy the sensors can and will pick up the motion. The potential for false alarms is there so keep that in mind. Often, a simple piece of tape obscuring just a part of the sensor can help narrow the field and prevent this. The process can be trial and error. It all depends on how you mount the sensors, of course.

The alarm is remarkably loud. If you want something you’ll hear at a distance, this one has you covered. Also means that any potential thieves are going to get nervous quickly when it goes off.

Make sure you test the batteries when the system arrives. Though it comes with some, they may not be the best quality. We recommend buying new batteries just in case. The batteries in the key fob are pre-installed but they may be old and dead or near dead.

If you want a system that looks professional and will deter would-be thieves as much by the appearance as the actual function, this could be the one for you.

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Things to Remember About Your Security System

How you use a boat security system really depends on what you hope to get out of it. Some systems, as we can see, are much more expensive than others. But that’s true of boats as well. There’s little need to use a $1000 system on an old fishing boat only worth a few hundred dollars. Likewise, you may want to secure an expensive yacht with some top of the line advanced technology and not a knock off brand.

Do You Need Boat Security Cameras?

You’ll notice many of the systems we included do not have cameras. This is really a personal choice as to whether you think they are necessary. A camera can be a great help but it needs to be marine grade. If you’re using a home security camera it may not be up to task. Especially if you use your boat in saltwater. They just can’t handle the harsh conditions.

Cameras can offer more than just security. A camera to monitor your engine room, for instance, isn’t about deterring thieves. This is to ensure the smooth and safe running of your vessel. So it’s worth considering what you can get the most benefit from.

Are Wireless Boat Security Systems Best?

Cheap wireless technology has scared off a lot of people in the past. Bad signal strength and spotty performance may have made you afraid to trust in wireless. Make sure you’re buying quality products and you should see their performance is definitely up to snuff. Wireless is often of great importance on a boat. The fewer wires you have around the better. Most systems will require hardwiring into the power source. But after that, cameras and sensors that work wirelessly are a great feature. Not only do they mean less clutter, they are easier to place. If you need to move things around, doing so without the burden of wires is a consideration to keep in mind.

In terms of power supply, always make sure you know how the system needs to be wired. Basic boat electrical work doesn’t have to be hard but it can be challenging. Most systems should be compatible with the power supply on your vessel but double check. This is especially true if you’re buying a system manufactured in another country. Power needs and connections may not be what you’re expecting.

A security system can potentially offer numerous features. Decide on which ones work bets for you depending on the needs and challenges you’re dealing with. For instance, a loud siren may not be the most helpful feature if no one is anywhere near where your boat is docked. If no one can hear an alarm, it doesn’t do much good.

Likewise, motion detectors can be a great help but they may need to be adjusted. If your boat starts moving in the waves, you don’t want the security system to go off every time this happens. Make sure you’re getting a system that has some flexibility. You want to be able to adjust your motion sensors, not just in terms of installation location but sensitivity.

Systems that don’t just set off sounds but lights are also a good idea. Sometimes an alarm can be disabled fairly quickly if someone sees where it is and tears out a wire or knocks it down. But when a security system is also linked to the lights, it’s harder to deal with. Plus it makes your boat even more noticeable while exposing potential thieves.

App Functions

Gone are the days of just replying on a camera to record the scene to a VCR or an alarm that blares mindlessly. Nowadays, any good security system should be able to connect over a network as long as you have an internet connection. That means you should be able to use an app of some kind to link your system with your phone, tablet or computer. These allow greater peace of mind because you can monitor what’s going on in real time and even make adjustments for some systems.

Most people don’t look at security as a before and after, but you should. An alarm is a great “before” security device, but tracking is good for after. If the alarm is disable or otherwise doesn’t manage to scare off a thief, then your boat can be stolen. Once it’s taken, you need to focus on the “after.” That’s where tracking comes in. Just because a thief got your boat doesn’t mean it can’t be saved.

Tracking devices can be discreet and offer accurate, rapid tracking using GPS. This information can help you track a boat with your cell phone whether it was stolen by a thief or even if it’s just out late. If a friend or relative is out longer than they should be, a tracker can be invaluable in figuring out where they’ve gone. And if a thief has the boat, the tracker data can be given to law enforcement or harbor patrol.

The Bottom Line

Security systems can let you keep track of your boat, its systems, and its location. They can prevent thefts and help retrieve stolen property. In the end they’re about securing your vessel and ensuring you get to keep enjoying it. Do you need a security system? No. But we definitely think you should invest in one all the same.

My grandfather first took me fishing when I was too young to actually hold up a rod on my own. As an avid camper, hiker, and nature enthusiast I'm always looking for a new adventure.

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Last updated on May 9, 2021

A boat is a sizeable investment. And as such must be kept safe at all times. You obviously can’t monitor it 24/7 but a boat security system certainly can. For those times you leave your boat unattended at a dock or at anchor, a boat security system will be “your eyes”.

The endless misfortunes that can befall your boat range from fires to thefts and collisions. By installing a security system, you’ll have first hand evidence of any unusual occurrences on your boat.

But note that these systems aren’t only for monitoring your boat from afar—even use it when onboard.

Does this sound like something you definitely need? Let’s have a look at our top recommendations that you can pick from.

Types of Security Systems

We’ll start by outlining that there are different types of systems. We list them below:

• Local alarm: This system is designed to alert people onboard or nearby of any disturbances to your boat. 
• Remote alarm: What happens if you’re not near the boat? This system will alert an owner of any suspicious activities happening on your boat even if you’re far away. Notification is done either via text, email or SMS.
• Interactive: This type goes beyond merely notifying the owner. It also allows you to immediately respond to a situation.

Top 5 Best Boat Alarm Systems and Tracking Devices

1. skippers wireless boat security system.

First off, you’ll be impressed by how easy this unit is to set up. This is largely because it’s a wireless security system so no wiring is necessary to install the gadget.

Not only is it easy to install, but simple to use too. The intuitive keypad controller allows you to easily program the unit to your desired function. And it comes with four programmable modes.

This Skippers device displays a red flashing light which indicates that the system is armed and ready to start surveillance.

The alarm on this boat security system is pretty loud. You’re bound to hear it from a distance. The siren is designed to sound for three minutes before it shuts off.

For this system to function it needs to be connected to 12V DC power. It comes with two Energizer batteries located in the keypad but note that they are largely for back-up only. And these batteries will last you anything between six months to a year.

Generally the device is quite sturdy. But avoid exposing it to water because though it’s moisture proof it’s not waterproof.

• Very loud siren
• Easy to install
• Not waterproof
• Slightly expensive

2. Spot Trace

Before exploring the specs, we’ll quickly point out how relatively inexpensive this unit is. The system is designed to monitor the boat’s surroundings and you can view footage online on your mobile phone in real time.

If there are any suspicious movements near or around your boat, you’re immediately sent a notification. Alerts are sent via email or SMS.

The device is battery powered. And you’ll appreciate how the battery is designed to last for at least two months before the next charge. When the battery is low—or if the device has powered off—you’ll also receive a notification.

With this system, you’ll receive a daily status message that assures you of your boat’s safety. Aside from being affordable, this system is also very easy to use.

The system is negatively affected by weather. Rain is interpreted as suspicious movements resulting in a false alarm. Also, note that it’s not waterproof so avoid submerging it in water; you’re not likely to receive a signal if this happens.

• Daily status message
• Weather related false alarms

3. Trak-4 GPS Tracker

Here is yet another boat security system that’s also easy to use. Upon installation, tracking will start in a matter of minutes. If there’s any suspicious activity picked up by the surveillance, you’ll immediately receive a notification via email or text.

This system is one of the cheapest on our list which is a plus. But note that you have to pay monthly subs to access hourly pings. The terms of purchasing this unit are pretty flexible. You don’t need a contract and there are no activation or cancellation fees.

You’ll enjoy unlimited cellular data with this system. And you can access surveillance footage via your mobile phone or tablet.

The device lasts up to 18 months on a single charge which is very impressive. It’s powered by a rechargeable battery which you can recharge using a USB cable or your regular phone charger.

The system is weatherproof; you can use it both indoors and outdoors. Installation is relatively simple. Our only concern is with the mounting holes that are rather small so you can’t use large screws. But nonetheless it’s an excellent product that works well.

• Long battery life
• Weather proof
• Sturdy & compact design
• Mounting holes small
• Doesn’t track in real time

4. Siren Marine MTC2 Wireless Boat Monitoring & Security System

The Siren Marine wireless boat security system is pretty easy to install. Like most systems on our list, this model is designed to track and monitor your boats surroundings. It has not one but two sensors included which will trigger the alarm if any movement is detected in and around your boat.

Features present on this system include GPS tracking as well as geo-fencing. This way you know where your boat is at all times. The unit features a functionality that’s designed to monitor if the system is functioning as it should.

This device allows you to control different systems on the boat from afar. Systems you can control include the air conditioner and lights.

But to enjoy all these impressive features you’ll have to pay a lot more because this boat security system is rather pricy.

• Control different systems from a distance

5. Reolink Go 1080p 3G/4G GSM Outdoor Mobile Cellular Security Camera

This wireless system is powered by a 7800mAh high capacity rechargeable battery. And the long lasting battery life is one of the product’s huge draw cards. If ever you don’t want to run out of power, then you can use it with the solar panel which is sold separately.

The system features a smart sensor that’s designed to detect movements. If any motion is picked up, the siren is sounded and you’re immediately notified via email or text. You have the option of customizing your own voice alert to deter the intruder as opposed to the siren. This is thanks to the integrated microphone and speaker that allow for two way communication.

You can view images and recorded videos clearly—even at night—thanks to the Starlight night vision feature. The camera has an impressive 110ᵒ field of view that allows you to view a wider angle of your boat’s surroundings.

Since the product is from China, technical support is very difficult to access.

• Expandable storage
• Excellent night images
• Voice alerts
• Reasonably priced
• Poor technical support
• Difficult to install

Boat Security System Buying Guide

Powering the systems.

From the above it’s clear that there are several options when it comes to powering boat security systems. Boat security systems are either powered by:

• Rechargeable batteries which vary with regards to operational time span. Lithium rechargeable batteries are however designed to last long so keep that in mind when shopping.
• A solar panel is another option although whether your system can use it depends on the brand in question. Needless to say, with solar panels, your chances of running out of power are minimal.
• DC battery banks , with 12V DC power supplies being among the most common power supplies on the market. Their popularity is largely based on their impressive stability and reliability.

Boat security systems have different kinds of sensors. We’ll discuss the common two types below:

• Motion sensor: As the name suggests, this type is responsible for detecting any movement that occurs on and near your boat. It can either be armed—or disarmed—using a remote.
• Door/hatch alarm: This type is designed to monitor if a door or hatch on your boat is opened or closed to deter intruders. If a door is opened, the siren sounds off. Usually no hardwiring is required with this type of sensor.

Regardless of the one you pick make sure it’s only designed to pick up suspicious motion signals and not other harmless activities such as rainfall or moving rodents. This only results in an increasing number of false alarms which can be rather annoying.

Sensors that significantly reduce the risk of false alarms are designed to exclude body mass. This means they’ll only trigger the alarm if the object detected falls above a certain weight.

Also note that a high quality sensor will notify you if the battery is near depletion so that you can take corrective measures.

Sirens and Alarms

After movements or suspicious activities are detected by sensors on the boat security systems, the siren or alarm immediately sounds.

You need to consider how loud the alarm is. You want one that you can hear from a distance if you’re not on board your water craft.

You’ll also need to consider the duration the alarm will sound for. Most sirens and alarms on boat security systems are built into the unit’s keypad & battery powered.

The tracking aspect on your security system which includes GPS helps you keep tabs on your boat when you’re not close by. You’ll always know exactly where your boat is.

Here you insert hidden devices on your watercraft where you can set up geo-fencing around your boat. This way you can track your boat’s location via satellite if it happens to go past its geo fence.

Depending on the boat security system you pick, you can receive mobile notifications regarding your boat’s location. Other manufacturers designed their systems to allow you to view your boat and its surroundings on your phone in real time. 

It’s important to consider the storage capacity on your boat security system. Preferably you must opt for one with a sizeable storage capacity to store all footage recorded.

Does it store captured videos locally or in the cloud? Both have advantages and disadvantages. Buying a system that only allows you to store videos locally is very risky. If any sort of damage occurs to the unit, you risk losing all recorded footage. In addition, the amount of footage that can be stored is limited. You’ll have to delete videos to make space for new ones.

With local storage you can only access footage if your devices are nearby. But your footage will be fully under your control with no third party interference.

Opting for a system that allows you to store in the cloud is ideal. Footage is backed up and can be retrieved at a later day when necessary. However note that you can only access this information when you have an internet connection. And since you’re entrusting a third party to store your videos, there’s also risk of security breach.

Connection and Subscription Plans

As stated above, with certain boat security systems you can only access footage if you have internet access. What happens if you don’t? There are manufacturers who design their security systems to allow you to access recorded information without Wi-Fi. The latter may be more ideal if you’re going to be viewing from a place with no internet access.

Aside from connection, some security systems have subscription plans in place to fully access the device’s full functionality. Only after paying monthly or annual premiums can you receive functions such as hourly pings.

Final Thoughts

Granted a boat security system won’t stop your boat from capsizing or sinking but you can certainly keep track of it. In the event of theft you’ll have footage of the culprit which increases your chances of finding it. In addition, any collisions that happen are captured first hand on camera.

Take care of your investment. This certainly sounds like a system every boat owner must have don’t you agree? 

About the author   Robert Finn

Robert has over 20 years of experience boating and selling boat equipment. His passion for the latest and greatest gear helps our clients find what they need. His favorite boating place is the Florida Keys.

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Marine Security Systems for Boats

• By Jim Hendricks
• Updated: February 4, 2015

Today’s boat security systems range from cellphone-size satellite ­communicators costing less than $100 (plus an annual subscription) to customizable networks topping $5,000 that include everything from cameras to a multitude of sensors, feeding streaming video, data and alerts to your computer or mobile device. Systems can also be configured to trigger conventional audible alarms with flashing strobe lights.

Such systems are not just for vessels afloat. Boats stored on trailers also benefit from electronic security devices. In addition, installing a system could reduce your boat insurance premiums. Indeed, a growing number of insurers now require security systems on high-end boats, particularly those that fish or temporarily berth in foreign waters like the Bahamas or Mexico.

Wireless Communications

At the heart of today’s ­advanced ­electronic marine security and ­surveillance systems is wireless ­communications. For example, the NT-Evolution 2.0 SM control unit ($2,999.99) from GOST ­(Global Ocean Surveillance ­Technologies) uses the ­Inmarsat satellite ­constellation for ­two-way communication via a ­compact puck-style antenna with a GPS ­receiver and the Nav-Tracker website ­(tracking.gosttracker.com). You can also add voice and text messaging to a mobile device within cellular range. It will call up to eight recipients.

Perfect for center-console fishing boats, the water-resistant control unit also has an internal battery for backup power in case of an onboard power failure or if thieves decide to cut the power in an attempt to disable the system.

Designed for any size vessel, the ­BoatLink+ system package ($699) ­notifies boat owners wirelessly via ­cellphone or email notification if a ­sensor is triggered while the system is armed. The BoatLink+ web portal (my.boatlinkplus.com) displays the system status, arms and disarms the system and more.

Alarm Sensors

A vast array of sensors stand ready to monitor your boat. The NT-Evolution 2.0 control unit, for instance, interfaces with up to 64 ­wireless sensors. GOST’s NT Evolution 2.0 SM package ($4,999.99) includes infrared-beam sensors that register onboard motion, a pull sensor that indicates if the boat is pulled away from the dock, and a high-water ­sensor, as well as a siren, a high-intensity strobe and a key fob for arming and disarming the system from the dock. You can also add a deck-pressure sensor, smoke ­detector, door sensor, low-voltage ­sensor and more. The BoatLink+ ­package, comes with ­monitors for the cabin door, engine-start switch, ­bilge-water levels and AC and DC voltage levels.

Geo-Fencing and Tracking

Many security systems allow you to set up an anti-theft perimeter called a geo-fence. With the system armed, an alarm is triggered when the boat leaves a predefined perimeter of the last locked location.

The BoatLink+ system lets you set geo-fences with diameters of 200, 400 or 1,000 feet, and with each alert, the current GPS location is sent. The GOST system is similar in nature: You set a geo-fence though the Nav-Tracker website, and it alerts you if the boat exits that perimeter.

GPS tracking of the boat position works in conjunction with geo-fencing, tracking the boat’s location at any given time. The GOST Nav-Tracker 1.0 ($1,125), for example, is a ­relatively simple, cost-effective antenna and ­transmitting device that not only ­allows you to set a geo-fence, but also monitor the boat’s movement online.

An even more economical ­alternative, the SPOT Trace ($100, plus an annual service fee of $100) is smaller than most cellphones, and the lithium ion ­battery-powered GPS receiver/satellite communicator automatically alerts you when it senses boat movement. It uses the Globalstar satellite constellation to communicate your boat’s GPS position via text and email every five, 10, 30 or 60 minutes. The Extreme ­Tracking ­Upgrade service ($199 per year) increases the update interval to every two-and-a-half minutes.

Devices such as the SPOT Trace and GOST Nav-Tracker 1.0 can be hidden from view, stashed in lockers or cabinets where thieves can’t readily find them. The water-resistant GOST antenna can even be mounted below deck; it can transmit through as much as a half-inch of solid fiberglass.

Video Monitoring

Remote streaming video is ­becoming an increasingly common security choice, allowing you to see what’s happening aboard your boat when you’re not there. For example, the GOST Watch H2O (scheduled to debut this year) will ­provide real-time video ­monitoring as an option with the Evolution 2.0 SM package, connecting with up to six cameras and communicating via the free GOST Watch HD app.

It’s an unfortunate fact of life that today’s fishing boats are attractive targets for nefarious types. Once a boat is stolen, it is often gone for good, likely ­spirited overseas and sold on the black market. The good news: Plenty of evidence ­supports the effectiveness of today’s sophisticated electronic ­security systems in thwarting thieves, sending them in search of easier targets. Most saltwater anglers are heavily invested — emotionally and financially — in their boats. Adding an electronic security system helps protect that precious investment, keeping you and your crew fishing for years to come.

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Taking boat security seriously

Sailing around the world for more than 12 years, through more than 50 countries, it seems we have been lucky to have not lost anything to thieves. But we feel one’s luck runs out at some point, and the worst will eventually happen. Rather than paying an insurance premium, we put that money into upgrading and maintaining our boat in a seaworthy condition. This year, our “insurance budget” paid for installing a real marine security system to protect our equipment and us from people who may be determined to carry our things away.

Dinghy outboards have always been targets, as have cellphones and cash, but now thieves are also very interested in marine electronics, scuba gear and other treasures found on most cruising sailboats — not to mention the boat itself.

It is time for cruisers, not just superyachts, to take the lead from landlubbers and beef up security aboard our boats. Otherwise, many of us will pay the price. People ashore lock their homes and cars, and have security alarms and services, yet many sailboats leave hatches open and doors unlocked while blissfully asleep in paradise. Innocence is waning though; over the recent years, tightening of security on cruising sailboats has been a trend.

Even modest sailboats like ours are a treasure ship when viewed from the life of many villagers. In so many ways, YouTube channels and generous yachties worldwide advertise the relative wealth on board sailboats. Opportunistic thieves may think that most yachties have possessions to spare. Unfortunately, the very things that many of us barely afford and appear like fancy toys to those on shore, are actually for safety — from navigation consoles, satellite phones and fishfinders, to laptops and iPads. Losing them is not just a financial hit but also one that can endanger our safety and ability to sail onward. We are often in locations where purchasing locally or flying in replacements is a near impossible or expensive task. And when word gets around that we were robbed, and that we were then able to go out and replace those things a month later because we “need them,” a message is communicated that most of us can afford to quickly replace these items.

We felt that investing in a serious anti-theft system would be cheap insurance; the value of one moderate chartplotter exceeds the price of one great security system. Camera equipment, stereos, computers, outboard engines — we could be ruined by what thieves could grab in just half an hour.

Home-brewed security In the past few years, we got by with cheap wireless cameras and burglar alarms, both packaged and home-brewed. But, our handyman security left too many blind spots and kept us home to play security guards instead of seeing the world we sailed so far to see.

Our requirements for a new system were as follows:

• A system that did not need Wi-Fi or cellular connectivity to be fully operational. We often anchor in dodgy towns that are not near cellular towers, and we need to be protected everywhere. Cellular is a nice backup, but it should not be the primary method used to receive messages, arm the boat or contact authorities in any security system. Dodgy cellular means dodgy security. And any world cruiser knows how frequently there is spotty cellular, let alone no cellular service at all.

• Motion detectors and/or cameras that would not false alarm because of the cat, the rocking of the boat, birds, boats, leaves or laundry. YouTube has countless videos showing alarm systems that triggered when the sun came up, or a speedboat left the anchorage rocking, or a bird landed on the binnacle. It would not be acceptable to have our ship’s cat setting off alarms.

• Very low amperage draw: A system that could be left on full time but comes with its own backup battery system should power be cut or compromised.

• Wired where necessary/recommended, but otherwise wireless as much as possible to save on installation effort and the number of holes drilled. We would not sacrifice reliability for the sake of easier installation. We promised ourselves to listen to what the experts recommended, who in turn would listen to all of our questions and provide viable solutions with knowledge specific to sailboats.

• High reliability in a marine environment. Our boat takes a beating, gets wet, and any system we get must be ready for this. We didn’t want a home security system repurposed by the marketing department. This system needed to be specifically for boats, tested and true, nearly waterproof, slamming-waves-proof and salty-humidity-proof.

• Barely visible from inside or outside of the boat, yet effective enough to set off alarms before a thief gets to the point of breaking the boat to get in.

• Able to activate bright lights, strobe lights and disturbingly loud, nauseating alarms if someone boards or goes near any entrance to the boat from any direction.

• Capable of arming the boat while away, and also able to set active outside-only sensors when we are inside the boat.

• Internet/app access to the security system via satellite so we could know its current status when we are away — even when the boat is nowhere near Wi-Fi or cellular.

• Able to send alerts to local authorities by satellite whether the boat is in cellular range or not.

• The option to expand and grow the system in the future. We didn’t want to have to buy a whole new system to accommodate a new sensor.

• Everything in one — i.e., not three separate systems to arm and keep up with.

• The ability to specifically protect our outboard engine on deck, as this is a constant high-theft item. We lift and lock the dinghy engine every night, but we wanted extra protection for this or other things on deck, fully integrated as part of the complete system.

• Excellent technical support and a strong warranty by a reputable company who’s here for the long haul!

• We actually can’t imagine anyone stealing our boat. However, we have started to read accounts of boats smaller than ours being stolen. We decided it would be nice if the system could track outright theft of the boat, and involve the authorities quickly. The same function could serve us well if the boat decided to take a walkabout around the harbor by itself while it’s at anchor and we are ashore.

Everything in one system It was difficult to get everything we wanted all in one system. Some systems were primarily boat systems monitors, but not very strong on the security aspect. Others would have a sensor we wanted most but absolutely nothing else, no ability to expand in the future or poor support. Others tried to tell us what they wanted us to have and didn’t listen to what we felt we needed specific to our boat and situation. If a company couldn’t support us in the purchasing stage, how could it possibly get better after they had our money?

Only one company had everything on our wish list but, of course, it also had the highest price of all the systems. We opened our pocketbook wide and made an order with Global Ocean Security Technologies, or GOST ( www.GOST.com ). The company doesn’t do home systems; they deal only in superyachts, poweryachts, luxury sailboats, speedboats and ordinary sailboats like ours. They have a stellar reputation for security systems on boats worldwide.

The folks at GOST preconfigured a lot of the system for us, modifying the system to make it affordable and specific for our needs. (Full disclosure: GOST did provide us with additional components in return for consideration in our articles and YouTube videos. However, we had already made a decision to buy their system prior to receiving any additional components). GOST also graciously allowed us to install the system ourselves, which it never does. This may possibly be due to Patrick’s stellar ideas in his “home-brewed security” video ( youtu.be/pi0zpy7CH5o ), or possibly from aptitude in his other how-to videos and articles.

There were countless possibilities with GOST. We spent hours on Skype with the team at GOST deciding exactly what made sense for a boat like ours. The company’s website shows many of the options, but anything becomes possible in a conversation with GOST, and modifications can both reduce and increase the prices tremendously. Let the team know your budget up front, and they can likely create the best package for your individual boat’s layout as well as recommend the best installer.

What did we get? For the base system, we purchased the simplest but still sophisticated next-generation Universal Control Unit (UCU), which includes many new features including lower power draw, DC cutoff to protect the vessel’s batteries, dual battery backup, a broadened 10-32VDC input voltage, and an easier but more feature-rich user interface. It is the only system on the market offering security, monitoring, tracking and surveillance integrated together in just one system.

This UCU can operate over both cellular and Inmarsat geostationary satellite networks, allowing for true global coverage. It includes a full-function app for off-site control to arm/disarm and control any DC or AC device, while allowing notification via push notifications and SMS text messages. Local arming features still include utilization of the key fob or optional user-friendly 5- or 7-inch touch-screen keypads in addition to the app. The next-generation UCU can communicate with up to 32 sensors, five AC/DC devices and 32 users/key fobs. The system includes completely independent wireless door/hatch contacts, infrared beam sensors, deck pressure sensors and high water sensors, as well as DC battery low voltage, AC shore power loss and smoke detectors, just to name a few. The internal LTE/4G/3G communicator provides cellular control with the app as well as text messaging. Additionally, the UCU can work with any existing onboard Internet via its third-party CAT5 Ethernet plug, as GOST recognizes that many boats already have Internet access and there is no need to pay for a second cellular/VSAT connection.

This system utilizes GOST’s Nav-Tracker GPS and Inmarsat antenna, enclosed in an IP67-rated (water resistant) enclosure with a backup power supply. We went without the optional display/keypad unit just to save a tiny bit on power consumption, but mostly to save money. We can even add local law enforcement contact details and set them up to receive all the reports coming out of the unit while the event is unfolding, which is a great feature. The system utilizes Inmarsat satellites for all communication and control so that we are not reliant on cellular connectivity, though it does have a built-in, quad-band GPRS/GSM with dual SIM card slots offering simultaneous push notifications, emails and text message reporting and control when within GSM cellular range.

The “inputs” can include up to 32 sensors, wired or wireless. Some of the sensors have separate control units powered by the vessel’s batteries, while others are self-powered with batteries that must be changed each year. We opted for several simple but extra-wide gap hatch opening magnet sensors so we can leave windows slightly ajar for air but still be protected, as well as a pet-immune, dual-beam motion sensor for inside. (The companies we were impressed with recommended against outside motion detectors on at least a monohull, since reliability would be lacking due to constant boat movement). We also have a great pull sensor integrated in the system that will protect our dinghy and other stern-rail objects quite simply, conveniently and completely wirelessly.

But, our favorite — and a quite unique — sensor, which was not offered in most marine security systems, is the deck pressure sensor. Since we have easy access to our decks from below, we are able to epoxy these small noninvasive sensors anywhere below our deck,  in all the places intruders would have to step on in order to board or access hatches. They are miniature “land mines” that “blow up” when someone steps anywhere near them. They can operate very reliably and effectively on any deck material or thickness in wet, windy, dry, sunny, cold and hot weather alike. They even differentiate when a bird has landed, a dog or monkey has jumped aboard or a jerry can has fallen over, versus when a human has walked on them. This is a very tried-and-true technology, having been used on superyachts for decades. These sensors weighed very heavily in our decision since we want to deter thieves well before they start breaking windows to get in.

Next, we chose a number of “outputs,” which include multiple loud alarms, sirens, horns and various light configurations that will flash and shriek like an NYC discotheque, suggesting an entire police squad is on the way. Most are either onboard lights or horns we already have from previous systems, but there are a few — like the wireless strobe light and an additional siren or two — that will make a thief lingering on board not only too conspicuous, but also nauseous, in pain and unable to carry out their original intentions.

Two modes of operation We will be programming the system so that there are at least two different modes: “staying on board” arming for when we are sleeping but want the deck, outboard and hatch entries armed; and another “fully armed” mode for when we want everything turned on. The system also offers two partitions — essentially, two completely independent security systems under one roof, like one for crew and one for the owners.

If the boat were to be stolen or drift out of its “geofence” area that we define, the system will let us know and police will easily track the culprit, even if they head out to sea on our boat. This is particularly valuable, since no matter what one’s financial standing is, a boat is usually someone’s most valuable asset — and, for many of us, our full-time home.

Well into the future, we can add all kinds of additional monitoring and security sensors. We can control all DC and AC devices on board like lights, air conditioning, the heat or the stereo. We can add a keypad and things like that awesome cloaking system or acoustic barrier. We can add hidden stationary or revolving cameras and recorders, as well as FLIR night vision, even on top of the mast. The possibilities are extensive with this system.

We don’t insure Brick House , but we spend money and time to keep her safe and seaworthy. Installation of this high-end security system represents another step in “self insuring.” Our new GOST UCU security system will be watching on Brick House but never be seen — unless you stop by for a demonstration in the middle of the night.

Rebecca Childress is a marine writer who voyages aboard the Valiant 40 Brick House with her husband, Patrick. Their blog is at whereisbrickhouse.com .

By Ocean Navigator

• The 10 best smartphone apps for sailors: proven through experience

Technology is evolving. Gone are the days when sailors relied purely on the basic equipment on board their boat — a chartplotter, GPS navigation and a pilot of the region. Nowadays, almost every modern sailor has a bunch of apps installed on their smartphone. So, we've asked our skippers which are their favourite apps they use the most. Here is our list of the top 10 sailing  apps  tried and tested over hundreds of logged miles.

1. Navionics: Boating Marine & Lakes

In our opinion, this is the best app for navigating your boat (but also for diving, fishing or other water sports). You'll find an incredible amount of information in it, from conventional GPS navigation to bay depths, harbour data, and contacts . Plus, it allows you to share your live location so your friends or family can follow your route online. We at yachting.com consider Navionics to be a basic part of any smartphone sailing kit ! The only downside is that it is a paid app, but it's worth every penny.

• Purchase Navionics at  www.navionics.com

2. Windy.com app

The Windy app and the windy.com website are one of the most well-known sources for boaters to check the weather forecast. In addition to wind direction and strength, you can find forecasts for temperature, waves, rain and cloud cover. Just like with any forecast model, it can't be relied upon 100%, so you should always pay attention to the actual conditions around you as well. Windy Premium, the paid version provides a more accurate forecast and more regular updates without ads.

• Download the Windy app at  windy.app

YACHTING.COM TIP :  Clouds  have been a source of fascination since the dawn of time. However, you don't need to be an expert meteorologist to know what to expect from looking at the clouds. In fact, this knowledge is practically essential for sailors. So, how do you read the clouds? Check out our article to find out —  Sailing: how to predict the weather by reading the clouds .

3. Anchor Watch / Alarm

An anchor drag alarm  or anchor watch basically does exactly what the name suggests — it emits a signal (alarm) when your boat drifts outside your designated security zone when at anchor . There are many apps available with this function, but Anchor Alarm is the one that works best for us. When you drop anchor, simply press the position button and adjust the perimeter you don't want to leave — for example, after taking into account the surrounding rocks and your proximity to shore, you might decide that you want to set the perimeter so that your anchor won't drag more than 15 metres. The app will remember where your anchor is located and will keep an eye on your position throughout the night. Should your boat move outside the set boundaries, it will trigger an alarm on your phone.

• Get the app on the App Store or Google Play.

YACHTING.COM TIP:  Review the basic rules of anchoring in our  complete guide to anchoring and moorings . We've covered two specific scenarios where you might need a little extra help. The first is on  how to prepare your boat for a stormy night at anchor and the second one is a guide to the Mediterranean Mooring technique, a combination of anchor and mooring lines often used in Greece —  How to moor stern-to: a step-by-step guide .

Navily is more of an app for recreational sailors where you'll find more than 14,000 anchorages and 6,000 marinas with photos and reviews from the community. There are also more than 700 partner marinas where you can book a berth directly via the app. The premiums version unlocks core features, such as automatic itineraries and distance calculation at sea. Navily claims to be the most innovative cruising guide.

• The app is available at navily.com

5. How to Tie Knots

Every skipper should have a masterful knowledge of sailing knots for every situation and should ideally be able to teach the crew. But, at the very least, you could install an app on their phones and get them to learn themselves. For this, we recommend the app How to Tie Knots which uses 3D animation to provide a realistic experience of tying knots using a virtual rope. There are countless apps out there for learning to tie knots so if you find something more suited to you, there are plenty of options. After all, they all have the same goal: to teach you how to tie knots.

• Find this app and similar ones on the App Store or Google Play.

YACHTING.COM TIP: Ropes or lines are one of the most important things on board any yacht and you simply can’t do without their ability to fasten, join and connect. Mastering at least a few basic sailing knots is essential for sailing, anchoring and moorings. It's not just beginner sailors who make mistakes , so we've prepared a guide to  9 essential sailing knots   for all your boating needs.

More sailing tips and tricks:

The ultimate yacht cleaning kit

New year's resolution: let's sail more eco, how to sail a yacht on a tailwind, skippered boats: how to pack for a yachting holiday, don’t panic: handling maritime emergencies, sextant and navigation: survival without gps.

This is one of the best-known  breakdown assistance services for sailors. SeaHelp is a 24/7 rescue service that includes insurance and reliable assistance at sea should you break down or have an emergency. There are three types of membership available online and the app can then help you with things like towing your boat, starting, bringing fuel, fetching parts, freeing lines from the propeller and weather advice. The SOS button  can also be used by non-members  of this service and sends out a distress SMS with your current location and mobile number. After receiving the message, SeaHelp immediately calls back to verify there is a problem and if there is a real emergency, sends a rescue boat. If you sail frequently or are planning a more challenging voyage, we highly recommend setting up this service.

• Find the app and purchase a membership at sea-help.eu .

YACHTING.COM TIP: In the event of an accident or mishap during your voyage at sea, deposit insurance will save your nerves as well as money. Are you hesitating whether it is worth taking out? In our experience, it definitely is! Check out our article on  the most common reasons for losing your boat rental deposit  and if you would like advice on deposit experience, feel free to get in contact with one of our representatives .

MySea is a free interactive guide to marinas, harbours, jetties, buoy fields and restaurants in Croatia, Greece and Turkey . For each marina, it provides information on the type of mooring, safety regarding the direction of winds, services (showers, toilets, petrol pumps, supermarkets, etc.), entertainment and dining options on-site. There is also a current weather forecast for the area with a bird's eye view. The app includes thousands of user reviews on individual marinas and berths can be booked directly via the app. Even admission to Croatian national parks can be paid for via MySea.

• Find it at my-sea.com .

8. Marine Traffic

Marine Traffic comes in especially useful if you are sailing in areas where there are a lot of cargo ships. This platform provides real-time information on marine traffic, live port arrivals and departures, as well as gross tonnage and registration number of the cargo ships moving in your area. If you are heading to the English Channel, the Baltic Sea or are planning a voyage further offshore, the risk of collision with a cargo ship is much higher. Bear in mind that the captain of a large tanker cannot see small sailing vessels, so it is best to give them a wide berth.

• Take a look at the live map of cargo ships at www.marinetraffic.com

9. VesselFinder

Similar to Marine Traffic, VesselFinder provides a live map, on their website and app, of the network ships using the AIS system — over 200,000 ships a day! In addition, it allows you to search for a specific ship and find its current location and more information on the vessel itself. View the ships and their position on the map in real-time or look at their previous routes, sailing history and, where applicable, marina reservations. It is also possible to create your own fleet of friends and track the individual boats of the whole group.

• Find out more about the app at www.vesselfinder.com

The VesselFinder app displays current marine traffic on a map, but you can also search for a specific ship, and view its current location and sailing history

10. Tide Alert (NOAA)

Recommended for all those who sail in tidal waters (France, the Baltic, Scotland...), it provides all the information you need so you don't get caught out by the tide, such as predicted tide height, the moon phase, etc. The whole Tide Alert (NOAA) environment is user-friendly, intuitive and easy to use. Plus, there is an alarm feature to alert you to a low or high tide. And best of all, the app even works offline if your signal drops out.

• Download it on the App Store or Google Play.

A low tide can leave you high and dry

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How to Use the Anchor Alarm on KnowWake

Both long-distance cruisers and weekend cruisers alike will agree that a reliable anchor alarm, also sometimes called an anchor watch or anchor drag alarm, is a critical piece of boat safety equipment. While some boats have anchor alarms built into their suite of marine electronics , many boaters rely on a manual anchor watch or opt for an anchor watch app.

Whether you’re planning a long-distance adventure like the Great Loop, spending your weekends overnighting, or just camping out for the night in a quiet cove, the KnowWake app now has a built-in anchor alarm that is ready for action.

Before we dive into how to use the KnowWake anchor alarm, let’s take a closer look at what exactly an anchor drag alarm or anchor watch is, and why you might consider using one.

What is an Anchor Watch and/or KnowWake’s Anchor Alarm?

Originally, the idea of an anchor watch was born among sailors to stand watch overnight, keeping an eye on the vessel at anchor and standing ready to alert the crew of any potential dangers. The idea of an anchor watch has obviously evolved overtime, and to this day, is still put into practice on many larger ships and yachts—with the support of marine electronics, of course.

In its most basic form, an anchor drag alarm does just what its name describes: it emits a signal, or an alarm, when a boat drifts outside of a designated security zone around the boat. Today’s anchor alarms rely on GPS technology, and allow users to create a perimeter (usually a circle) around the vessel. The key to setting up an effective perimeter for an anchor alarm is to allow just enough space for the normal movement and motion of the boat, so as to not signal a false alarm.

Keep in mind, modern anchor alarms track the boat, with a signal coming off the electronics and/or an attached antenna or satellite—and not the actual anchor itself.

Using the KnowWake Anchor Alarm

As part of the 4.7 app release, KnowWake unveiled a suite of new safety and social features, designed to make your days on the water better than ever. Part of that release included the all-new anchor alarm tool, which creates a security zone around the vessel, signaling both new and experienced captains of any movement or drift away from its current location.

Follow these simple steps to utilize the anchor alarm in your KnowWake app:

• First, make sure you have the most recent version of the KnowWake app downloaded to your iPhone or Android.
• Open the app, and click on the bottom left ‘Wheel’ icon to access the main menu panel.
• Select ‘Anchor Alarm.’
• Upon clicking, a new display will open that allows you to set your Alarm Settings.
• Select your alarm preferences, either Sound, Vibrate, or both.
• Use the slider to adjust the size of your radius—anywhere between 1ft to 100ft.
• Remember to set your location permission to “Always” in your app settings, in order to successfully track your vessel when the KnowWake app is in the background.

Ready to use the KnowWake Anchor Alarm tool?

Take the first step and download the app today to get started.

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Three Alarms That Can Save Your Boat

By John McDevitt

There's no cause for alarm, but installing these three types of detectors could save not only your boat, but your life.

Fires that start on unoccupied boats in marinas represent significant losses every year, according to BoatUS Marine Insurance, and my own experience as a surveyor. Propulsion fires while underway also represent a great number of open-water boat fires — and significant personal risk. The installation of early-warning detection provides an opportunity to handle a fire in the early stages when things are still manageable.

Boating industry regulators have been reluctant to require smoke alarms in pleasure boats, and there are currently no smoke alarms tested to the marine environment by an independent testing organization such as Underwriters Laboratories — and that's the regulatory rub.

High-Bilge-Water Alarms

Recommended by the American Boat & Yacht Council (ABYC), high-water alarms are now installed on all boats built to its standards, for good reason: These simple devices typically use a switch to activate an alarm when water reaches a predetermined level and can save your boat. BoatUS Marine Insurance has analyzed sinkings over the years, and found that 69 percent of boats sink while at their dock — a good reason to connect the sensor to the boat's horn so others will know if your boat is taking on water.

If your boat has multiple bilge areas, it's best to have a separate bilge alarm for each area, with an indicator light as well as an audible alarm and a label to indicate the area involved. If you're aboard, the warning can give you enough time to find a leak before it's too late.

Locate the detector switch high enough above the normal level of bilge water to prevent the alarm from sounding when the bilge has a small amount of water easily handled by the bilge pump. But it also should be located low enough to alert you if there's a real problem. The same issues that plague bilge pumps can affect high-water alarms: corroded wire connections and jammed switches. While the alarm itself may last indefinitely, float switches need to be checked at least annually.

According to BoatUS Marine Insurance claim files, boats that sink at the dock usually do so because of three things: Water gets in at the sterndrive bellows (inspect every couple of months and replace every three to six years); leaking cockpit and livewell plumbing (inspect hoses and pipes at least twice a year, replace any suspect fittings); and leaking stuffing boxes (there should be no leaks with the engine off, two to three drops per minute when running).

Underway, boats usually sink due to boarding waves, leaking fittings, and overheated engines, which causes exhaust systems to fail and leak. Many thru-hulls are in the same place as the outdrive bellows and raw-water cooling system: the engine room. Look there first. A high-water alarm might just buy you enough time to find a leak before it's too late.

— Charles Fort

But there is good reason to expect that household alarms will function properly in the dry spaces of a boat. Household smoke alarms are readily available and are inexpensive. There are also a number of features and options — such as RF (radio frequency) interconnection between smoke alarms (no wiring) and assigned alarm locations (kitchen, master bedroom, guest bedroom). I have a smoke alarm installed in the bridge, under my helm (attic), and if there is a problem in my engine room (basement) while underway, all alarms on the boat go off and state "smoke in the basement." I also have one installed inside my electrical panel (utility room).

Some alarms are offered with two types of sensing devices — photoelectric and ionization. Photoelectric is more responsive to smoking or smoldering fires. Ionization is more responsive to flaming fires. I like the photoelectric as many boat fires are electrical and therefore smoky in origin. Current smoke-alarm technology has eliminated many of the false alarms of the past.

Gasoline Vapor Detectors

If your boat has a gasoline fuel tank mounted belowdecks, you should have a vapor detector. Also known as "fume sniffers," vapor detectors monitor for flammable gases such as gasoline fumes.

>Vapor detectors are mounted in the engine-space bilge, just above the slosh height of bilge water, with the sensor away from the hottest parts of the engine, such as manifolds. Vapor detectors are almost always hard-wired to the boat's 12-volt DC system. Usually, the unit has a control head mounted at the helm that will sound when dangerous fumes are detected in the bilge. The wire that connects the sensor to the head unit typically can't be cut because the manufacturer has calibrated its length.

Some vapor detectors can turn on the bilge blower when they detect a buildup, a smart option. The blower, of course, must be ignition-protected. Look for an alarm that is UL 2034 listed.

Vapor alarms should be tested monthly using the manufacturer's procedure. You can also test the sensor using a butane lighter by depressing the lever lightly to release a small amount of butane gas next to the sensor.

Replace vapor detectors after no more than five years, or right away if they become submerged.

If the alarm sounds at the fuel dock, it may mean that a large quantity of spilled gas is in the bilge; it should be dealt with by pros. Make sure everyone is off the boat (as they should be while refueling) and call 911. Don't operate anything electrical, including the blower; it won't eliminate spilled gas. If it sounds while you're underway, call for help on a handheld VHF (less chance of sparking than an installed one) or a cellphone.

According to the American Boat & Yacht Council, smoke alarms should be installed on any boat with sleeping quarters or other accommodation spaces. Install them on either side of a solid door, away from rain or sea spray. They should be installed high in the space they protect (smoke rises). Replace the batteries every spring. Some smoke alarms have an "end of life" statement in the instructions, so follow it; 7 to 10 years should be the max. Some smoke alarms have nonreplaceable batteries that are designed to remain effective for up to 10 years; they signal their end of life and must then be replaced. Look for the UL 217 Single Station Smoke Alarm Approval, which means the unit has met the UL Standards for household smoke alarms.

Refueling Danger

BoatUS Marine Insurance has seen several explosion claims that occurred right after refueling. Gasoline, like other vapors, has an "upper explosive limit," or UEL. Too high a concentration means it can't ignite. A leaking fuel-fill hose can allow gas to collect in the bilge, making vapor concentration too high to ignite. This prevents engines from starting because there are too many gas fumes and not enough air to support combustion inside the engine.

But as fresh air gets mixed with the vapors, say after opening the engine cover, the fumes become less concentrated than the UEL, and a spark from a faulty starter or bilge-pump switch can ignite the fumes in a spectacular way. If your boat refuses to start right after fueling, immediately check for a gasoline spill.

Test smoke alarms monthly. Most have a test button, and the RF alarms should go off on all of them when one is tested. And finally, have a plan to follow if you hear your alarm sound.  

— Published: December 2018

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Having fuel onboard presents a danger, especially if you are unaware of leaks or vapor accumulation

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NavAlert – NMEA 2000 Monitor & Alert Solution

$ 359.95

“NavAlert is an alert, alarm and monitoring system for any NMEA 2000 network with custom anchor and collision alarms and SMS interface to our 4G Xtream product.  Set navigation, engine, electrical alerts for any parameter available on the NMEA 2000 network. ”

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KEY FEATURES

NavAlert is Digital Yacht’s latest innovation and allows an alarm to be set for any parameter that’s available on the boat’s NMEA 2000 network. That could be navigation data such as depth, heading or speed, electrical data such as voltage and engine/generator data including temperature, pressure, tank levels, fuel flow etc.

It connects anywhere on the NMEA 2000 network and also takes power from this connection so installation is super simple. A local WiFi network is created by NavAlert so setup is possible via any smart phone, tablet or PC. Simply choose the parameter you want to monitor and set an alarm level. Multiple parameters can be monitored.

Operation is simple.  Simply search for the wifi network that NavAlert creates and connect via a smart phone or tablet.  Open a browser and connect to NavAlert and you’re presented with a clear graphical interface allowing easy setup, configuration and viewing of the alerts and network data. NavAlert constantly monitors the whole network so alert parameters can be set for any variable.

Integrated into NavAlert is a custom alarm for anchor drift using an algorithm to calculate the optimum drift radius based on depth and the scope of the chain for reliable notifications. There’s also an anti collision alarm based on CPA (closest point of approach) and TCPA (time to closest point of approach) AIS data from a connected AIS. These alerts can also be monitored through the wireless interface with attractive graphical displays of current status.

Alarms can also generate an SMS message which can be relayed through Digital Yacht’s 4GXtream internet connectivity solution allowing remote monitoring – great for feeling secure that the anchor is holding well when enjoying a lunch ashore. Alarms are independent of any alarms set on a plotter allowing NavAlert to operate even without a primary multi function display being powered up – an important feature for power limited sail boats.

Alerts can also be relayed to compatible multi function devices (Garmin supports this function) for a pop up data window indicating an alert and the ability to acknowledge.

NavAlert is universal, using the industry standard NMEA 2000 data protocol so will integrate with all leading brands and systems.

You can find out more about NavAlert by clicking here.

You can configure the NavAlert through its own simple web interface, just open your web browser, enter the NavAlert’s IP address and you can change network name & password or even merge the WiFi to an existing WiFi network on board. So no complicated programming software or app required.

A number of common Alerts have been pre-defined, sorted by category, which you can select and modify or you can create your own custom alert from scratch. When you have configured an alert, you can select the action NAVAlert will take when the Alert occurs, such as the internal alarm’s tone and duration that will be sounded or sending the alarm to a compatible Multi-Function Display (MFD) or even to send an SMS message to your mobile phone (if connected to the 4G Xtream).

NAVAlert also has a powerful, built-in Anchor Alarm that can monitor for anchor drag and also collision alarms with Closest Point of Approach (CPA) and Time to Closest Point of Approach (TCPA).

SPECIFICATIONS

• Universal NMEA 2000 alarm and monitoring solution
• Set a configurable audio and visual alarm for any parameter on the NMEA 2000 network – for instance: shallow depth, low fuel level, off course, engine temp, tank levels, low voltage etc
• Relay the alert via the NMEA 2000 bus to a Garmin multi function display to deliver a popup alarm window
• SMS alerting through Digital Yacht’s 4G Xtream system to a mobile – ideal for remote monitoring of the boat.
• Built in unique anchor drift alarm
• Built in AIS collision avoidance alarm

NavAlert User Manual V1.00 (English)

• 1m NMEA2000 drop cable
• WiFi antenna built-in

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Next-gen SMART boat solution

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Digital switching

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Overview YS Pro

Ys pro is protected by a premium waterproof rugged casing. it includes a high-end touch screen for ease of use. an ‘all-in-one’ product combining:, a low power consumption security system.

• Super low power consumption (<0.3 W)
• Large selection of wireless premium sensors with extended battery life using ZigBee 3.0 protocol
• Internal alarms include geofencing, battery, tilt, temperature and G-shock alarms

A revolutionary sailing analytics solution

• Data collected from NMEA2000, J1939, Ethernet, Modbus and 2 other CAN buses
• Smart filtering functions (averages, min/max, etc.)
• Coverage in more than 100 countries

Smart Connection

• Fit-for-all digital switching solution, using either Wi-Fi, BLE 5.0, Zigbee 3.0, NMEA 2000 PGNs or Modbus
• 12v 24v smart relay available

High-speed Wi-Fi hotspot

• YS Pro allows users to insert a sim card to act as a high-speed Wi-Fi hotspot
• Multiple Sentinel Cam 2 can be paired

Yacht Sentinel Ecosystem

A large variety of premium wireless sensors and accessories can be purchased separately

Partner platform, free crm system specifically designed for shipyards, dealers and charter companies, ys pro user app, our new user app allows boat owners to receive remotely at any time a wide range of data and alarms, and to benefit from exclusive services, why ys pro, credibility and industry knowledge.

We have been developing connected boat solution since 2008

3G/4G worldwide coverage

Data is recorded for months if no coverage

Full comprehensive suite

Ys pro combines 4 functionalities: security system, sailing analytics, smart connections & wi-fi router, robust & reliable.

Premium rugged & waterproof casing. Over-the-air software updates

"> "> Large choice of sensors

10 different types of sensors and growing

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Including a user-friendly app and a CRM product line for businesses called Partner Platform

Fits motorboat & Sailing boats of any sizes

Touchscreen makes YS Pro super easy to setup and to use. Battery consumption < 0.3W

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YS Pro only costs 1590€ + 20€/month

Critical data for your business

Improve customer support, access a wide range of data remotely, know what’s happening on board, prevent inappropriate behaviours and receive 40+ alarms, increase efficiency, manage maintenance remotely, simplify checkin & checkout procedures, preventive maintenance, find out about small issues before they become problems, collect data & take care of your fleet, generate reports on our partner platform, useful benefits for users, decrease incidents, receive 40+ alarms if something goes wrong, peace of mind for boat owners, control things remotely, insurance premiums, get discounts by using our products.

Excellent boat monitoring- Unit is easy to set up and I like the fact that the sensors are wireless — competitor’s sensors are wired which is more difficult to position. Customer support is very helpful. They were even willing to get on the phone with me in (their) evening since I’m on the US West Coast

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Very Happy Customers- We have installed Yacht Sentinel 6 into a few boats in Hong Kong and the owners are more than satisfied with the setup. They can now monitor their boats remotely while accessing data that was previously unavailable without a lot of effort. The simple installation makes it even better.

Indispensable equipment for a Yacht ! – We are using YS6 for various boats, it is a reliable product which becomes more and more essential for every boats. Indeed, you can check at any time the most important data like the tension of the batteries, the current position of the boat and the possible alerts. But if you don’t check by yourself, you receive an alert message on your phone. Thus, a very helpful equipment for a careful owner with a reasonable cost and easy to install!!

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Geofence for Protection

Yacht drifting caught right in its track..

A Geofence is a virtual ring that establishes a circle around your yacht and acts as a boundary. When the yacht represented by the Blue Dot crosses the Green Geofence Boundary in as little as 50 feet , Nautic Alert Insight will immediately tell you, while aboard or ashore.

Precise Position Calculations

Nautic Alert Insight processes WAAS based GPS position information and uses proprietary advanced algorithms to eliminate false-positive notifications caused by changing weather conditions and changes in satellite signal strength to ensure high accuracy in reporting and notification. The proprietary algorithms used by Nautic Alert Insight rely on specialized integrated hardware not currently available in NMEA-based GPS solutions or NMEA 2000 networks.

Precision Anchor Alarm

When the green Geofence boundary has been activated a Set Point will be established representing the exact location of the yacht, at the time of activation.  If the anchor starts to drag, the yacht will start to drift towards the Geofence. Once the yacht crosses the Geofence, an on-board integrated alarm will sound on-board.

Notification to Smartphone

Not on-board when your Yacht crosses the Geofence boundary, we got you covered. Nautic Alert Insight will send you and your designated recipients an email and text notification in Real Time so you and your support team remain informed when it matters.

Simple to Use

Using the Nautic Alert Insight touch screen – just tell Nautic Alert the number of feet you want from the yacht’s current position to the green Geofence boundary, and it will establish the Set Point (current GPS position), the Geofence boundary, and activate it. It is that Simple .

Applicable Usage

A mooring system is made up of a mooring line, anchor, and connectors to which a boat is moored.  Many boaters leave their boats for a period time not knowing if their boat remains moored or is slipping from her mooring.  With the Nautic Alert Geofence, an owner knows exactly what the situation is and can maintain a peace of mind on-board or ashore.

Anchoring requires skill and often boaters use distant objects to determine if the anchor is holding.  At night, the situation makes a good night sleep difficult.  Some boater may use a GPS, but there are challenges – mainly accuracy and precision of the position data. Nautic Alert solves these challenges and does it within a minimum of 50 feet.

When a yacht is moored at a harbor and no one is on-board, it is a great feeling to know that your yacht is where you left it. With the Nautic Alert Geofence, you will know if your yacht moved without your knowledge, within seconds of it happening through an audio alarm, text message, and email.  Nautic Alert monitors your yacht’s position and protects.