Frequently Asked Questions
General
Personal Locator Beacons (PLBs) and Emergency Position Indicating Radio Beacons (EPIRBs) typically rely on satellite networks to transmit distress signals, and it might take longer for the signal to be picked up and responded to. The LifeLine sends signals to nearby vessels via the VHF marine radio frequency, allowing immediate communication with boats within rescue range around you – no middlemen! This technology ensures quicker response times during search and rescue operations, and swift alerts mean faster rescue.
LifeLine has no registration, subscriptions, or service fees. There’s a free Nautilus GPS mobile app, where region or mode settings can be configured. We believe you shouldn’t have to pay for a subscription if you need to call for help.
No, it is designed and certified for use on water only, as it operates on marine VHF channels. Regulations restrict the use of these channels to marine environments only.
Yes, but only when the cap is closed. The Nautilus LifeLine is waterproof to 425 feet (130 meters) with the cap closed. Open the cap only on the surface when you’re ready to activate the LifeLine. On the surface, with the cap open, its IP68 watertight, making it perfect for all weather conditions like heavy rain, swell, or big waves!
IP68 (Ingress Protection) rating means that the device is completely dust-tight and protected against immersion in water up to a certain depth. We recommend not submerging it deeper than 3 feet (1 meter).
No, Nautilus LifeLine cannot be activated underwater. It uses VHF (Very High Frequency) radio waves to send digital signals, which only travel through air, not water.
It sends universal distress signals that are recognized worldwide, so it doesn’t matter where you are or what language is spoken.
The serial number for your Nautilus LifeLine can be found on the back label. This number is essential for using the app or verifying ownership in case of support inquiries. Over time, the label may wear out, or it could be lost, so we strongly recommend recording the number or taking a photo for safekeeping.
Download and install the Nautilus GPS app from Google Play or Apple App Store. (Note: iOS app requires iOS8 or later)
You can purchase directly in our online shop. Our products are also available on Amazon, or use our Nautilus Dealer map to locate your nearest authorized Nautilus Dealer.
Technical
The latest nexGen model can transmit for up to 100 hours with full batteries.
The range depends on how high the LifeLine is held, environmental conditions, and the height of the receiving antenna. The nexGen LifeLines range, even at sea level, can reach up to 5.5 miles (~9 km). In Coast Guard trials, the maximum demonstrated range was 34 miles (55 km) using a high-elevation receiver antenna. To maximize the range of your unit, fully extend your arm upwards and hold the device as high above your head as possible.
Automatic Identification System (AIS) is an automated tracking system that works on the VHF mobile maritime band and operates principally on two dedicated frequencies: AIS 1 (161.975MHz) and AIS 2 (162.025MHz). It’s simple and effective: a position advisory or distress alert from your LifeLine is compatible with AIS receivers on nearby boats. In many cases, your position will also display on ships’ navigational computers and radars.
AIS is mandatory under the Safety of Life at Sea (SOLAS) V regulations for all ships over 300 gross tons engaged in international voyages, and for cargo ships over 500 gross tons not engaged in international voyages. Passenger ships are required to have AIS regardless of their size. In some European inland waterways, larger pleasure vessels must also carry AIS, depending on local regulations.
As of May 31, 2014, all EU-flagged fishing vessels over 15 meters must be equipped with AIS. Similarly, as of March 1, 2016, all commercial U.S.-flagged fishing vessels over 65 feet must carry AIS. Many smaller commercial vessels, fishing boats, and yachts also use AIS either voluntarily or due to local requirements.
Very High-Frequency Digital Selective Calling (VHF DSC) was developed as part of an international effort to address and improve safety and security issues at sea. DSC-equipped radios continuously monitor channel 70 (156.525MHz). When the Nautilus LifeLine sends a distress signal, all these radios within the rescue range will receive the digital message, sound an audible alarm, and switch to channel 16 the international distress frequency. The DSC function on the LifeLine is not activated by default, as it can vary by region. The region and settings can be changed in the Nautilus GPS app.
In 1999, the International Convention for the Safety of Life at Sea (SOLAS) mandated that all passenger ships, cargo ships, and vessels over 300 gross tons must carry DSC-equipped radios. Today, most VHF marine radios come with DSC capability and are widely used across both recreational and commercial vessels. In the U.S., fixed-mount VHF marine radios have been required to include this feature since 1999.
To check if your dive operators boat is compatible with Nautilus LifeLine, ask if they have a VHF radio with Digital Selective Calling (DSC) or an AIS (Automatic Identification System) unit on board. Whether your own dive operators boat has DSC or AIS is not essential to a successful outcome. Nautilus LifeLine sends signals to all nearby boats with AIS receivers and to VHF-equipped boats with DSC, as long as you’ve activated the DSC function in the Nautilus GPS mobile app.
Activation
This is a routine position update (this function might not be available in some European countries). It will continuously transmit a non-emergency position report until deactivated. Vessels and rescue craft within range (up to 34 miles or 55 km, depending on the height of the receiver’s antenna) will get a Position Alert message displaying your latitude and longitude coordinates. This function does not send an emergency distress message.
The benefit of this option is that it removes the conflict you might feel if you’re concerned that you haven’t been seen but are hesitant to trigger a full-blown search. Should circumstances become critical, you can always fall back on the distress alert function.
This is a emergency alert. It will continuously transmit your emergency signal until deactivated. Vessels and rescue craft within range (up to 34 miles or 55 km, depending on the height of the receiver’s antenna) will get a Man Overboard message displaying your latitude and longitude coordinates.
Yes, deliberate misuse can result in fines or penalties. Just like any other emergency channel, the LifeLine’s distress alert should only be used in a true emergency to avoid confusion and tying up resources that may be needed for real emergencies. Remember, this alert is literally a call for help! For non-emergency alerts, use the position advisory function (might not be available in some European countries).
In the case of an accidental false alarm, deactivate the distress signal immediately and notify the appropriate search and rescue authorities in your region as soon as possible.
It is written on the sticker under the cap on your LifeLine, so that even in stressful situations, you can easily follow the steps.
It was initially designed for divers, providing safety if they drift away after surfacing. For apnea and scuba diving, automatic water activation isn’t effective, same for many water sports. There are already many good alternatives available for man-overboard situations that feature automatic activation.
In an emergency situation, it is generally recommended not to activate more than two Nautilus LifeLine devices at the same time if you are in a group and close together. If individuals drift apart, each person should activate their own device to ensure they can be easily located and rescued.
Maintenance and Accessories
Rinse your LifeLine with fresh water after exposure to salt water or dirty environments. If the cap stayed closed and the inside was not exposed to the elements, rinsing the exterior of the unit will be sufficient. Do not use any chemical cleaners or solvents, as they can damage the unit’s components. Fresh water is all you need.
The o-ring under the cap is a custom diamond o-ring that doesn’t need any lubricant or silicone grease. All you need to do is keep it clean. The o-ring by the batteries is a standard o-ring that can be lubricated if needed, but it’s not mandatory.
For units manufactured after June 2018, use only the provided screwdriver. For earlier models, use a Philips #1 screwdriver. Ensure you are working on a clean, lint-free surface. Unscrew two screws on top cap. Insert two CR123 3V batteries (Must be installed with proper orientation+, – symbols). Tighten screws just past point of resistance, do not overtighten. For detailed instructions, please refer to the user manual.
Using a larger screwdriver might lead to accidental damage of the plastic housing.
Do not overtighten the two screws. Tighten only until snug. If the screws cannot be removed with the included mini screw driver, they are too tight.
If you’re unsure, its always a good idea to replace the batteries. This is particularly important if you’re planning a big trip and your batteries are several years old or if your LifeLine has been activated for a prolonged period. You should also replace the batteries based on the expiry date printed on the battery or its original packaging. Our testing shows that high-quality batteries can last up to 5 years. If you’re still uncertain, you can test the battery by pressing the blue button to activate your LifeLine, then holding the yellow button for 5 seconds (no longer). If the RED and YELLOW LED lights flash alternately, it’s a sign that the battery is low.
No, it is depth-rated to go as deep as 425 feet (130 meters) with the cap closed, so it’s perfect for scuba and free divers without needing an extra dive case.
The LifeLine has a small opening in the bottom corner, so it can easily be attached to a string, bungee cord, or clip if needed. It can also be tucked into a zippered pocket, attached to your BCD, wet suit, or dry suit. We also offer silicone and neoprene pouches that provide multiple attachment options.
The opening of the pouch can be stretched quite far without any damage, so don’t be afraid to stretch it as far as needed to get the LifeLine in or out. You can watch a video here.
The Nautilus GPS comes with a limited warranty. The GPS limited warranty covers the correction of manufacturing defects and resulting damage only and is valid for 5 years from the date you take sales of your unit. Without limiting the generality of the foregoing, this warranty does not cover physical misuse or abuse of your unit, including tampering by unauthorized persons or repair facilities, flooding as a result of customer misuse/neglect or improper care and maintenance, damage or flooding if the unit is submerged without the lid being properly latched or if the o-ring is not clean and clear of contamination. IMPORTANT: THIS WARRANTY IS ONLY AVAILABLE TO THE ORIGINAL OWNER ON UNITS BOUGHT FROM AN AUTHORIZED DEALER AT MINIMUM ADVERTISED PRICE (MAP). Read more here.
Yes.
Our in-house technicians in Canada can service your LifeLine. Just send us an email, and we’ll provide detailed instructions, including return details and our delivery address.
You can easily replace the O-rings at home. Replacement O-rings are available in our online shop. To replace them, gently remove the old O-rings with your fingers. If needed, use tweezers with smooth edges, avoid sharp objects that could scratch the surface where the O-ring sits. Clean the area thoroughly, ensuring no debris is left behind that could affect the seal. Place the new O-rings in position and check that they fit securely.
Gen 1 LifeLine model “Diver”
Yes, it may still function, but the battery is now several years past its service life. We recommend reaching out to us for an upgrade by participating in the Trade-In Special, where you can send in your old model and receive the latest nexGen LifeLine at a discounted price.
No, the production of the Gen 1 LifeLine model stopped years ago (due to the new FCC regulations), and spare parts are now completely out of stock. We recommend reaching out to us to upgrade by taking part in the Trade-In Special, where you can send us your old model and receive the latest nexGen LifeLine at a discounted price.