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Nautilus LifeLine Marine Rescue GPS

NL-GPS-001 10/22
Nautilus LifeLine
Starting at: $335.00 Sale:$308.20


The all-new Nautilus LifeLine Marine Rescue GPS is less than half the size of the original Nautilus Lifeline radio and is incredibly simple to use. Simply undo the latch and open it, turn it on, remove the red distress cap and press the red button. That's it!

Accurate Positioning: Your GPS position accurate to 1.5 metres and a man overboard distress message will be broadcast to all AIS equipped ships up to 55 kilometres (34 miles) away as well as a special DSC message to the marine radio on your own vessel.

No MMSI and Registration: No special or dedicated base units required. No registration, subscriptions or service fees required.

Positively Buoyant: Your Nautilus LifeLine Marine Rescue GPS floats! It is waterproof in all sea conditions. Just keep the O-ring clean and forget about it for the next 5 years!

Waterproof: LifeLine GPS is waterproof. It is depth rated to 130 metres (425 feet) with cap closed.

5 Year Battery Life: Just install two CR123A 3V Lithium batteries, keep the O-ring clean, and forget about it for the next 5 years!

Universal: All modern commercial ships and most yachts are equipped with AIS and DSC allowing universal worldwide use of the all-new Nautilus LifeLine Marine Rescue GPS.

AIS/DSC Technology: Each Nautilus LifeLine Marine Rescue GPS is programmed at the factory with a MID number allowing automatic AIS functionality as soon as your unit is powered up. Your ship's MMSI must be loaded with the simple to use built-in optical sensor to activate DSC functionality.

Warranty: 1 year manufacturer warranty included.

Easy to Use Full Emergency Mode! To activate full emergency AIS/DSC HELP mode...

  • Open the dive cap by releasing the latch.
  • Press the blue button to power on the LifeLine GPS. It will now begin to search for a GPS lock.
  • Remove the antenna retainer and manually unfurl the antenna.*
  • Hold the Red Button for 5 seconds to begin distress transmission.

* Be cautious when removing antenna retainer. The antenna may spring out rapidly.

Vessel DSC Help Mode! You can program the MMSI number of the liveaboard, charter boat, or dive boat you are diving from into the LifeLine GPS. Then if you hold down the Yellow Button for 5 seconds, the unit will send a DSC position report directly to the vessel VHF radio.

Don’t get left behind!

Nautilus LifeLine Marine Rescue GPS Features

  • It Floats! Waterproof in all sea conditions
  • Man overboard distress message
  • Half The Size of earlier model
  • AIS and DSC Technology
  • No MMSI, Licences and Registration
  • 5 Year Battery Life*
  • User-replaceable batteries*
  • Diver Depth Rated To 130 metres (425 feet) with cap closed
  • Transmits GPS Position To Boats Up To 55 kilometres (34 miles)
  • Durable and waterproof polycarbonate housing
  • Proudly manufactured in Vancouver, Canada

* Unit requires two CR123A 3V Lithium Batteries, e.g. Panasonic CR123A (1550 mAh), to operate. Lower-quality batteries may have a reduced lifespan. Batteries are not included.

Nautilus LifeLine Marine Rescue GPS Specifications

  • AIS Transmit Power: 1 Watt
  • AIS Frequency: 161.975 and 162.025 MHz
  • DSC Transmit Power: 0.5 Watt
  • DSC Frequency: 156.525 MHz
  • Messages: Individual Distress Relay, Distress Alert
  • Environmental Temperature Range: -25°C - +55°C
  • Waterproof Depth: 130 metres (425 feet) sea water
  • Dimensions: 75 x 97 x 39 mm (2.9 x 3.8 x 1.5 inch)
  • Weight: 131 g (4.6 Oz) including batteries
  • Batteries: Two CR123A 3 Volt Lithium (User replaceable. Batteries not included, but widely available)

What's In The Box? Nautilus LifeLine Marine Rescue GPS unit, Antenna winder, online Owner's Manual. Batteries not included.


Each LifeLine GPS comes pre-programmed from the factory with a Maritime Identification Digits (MID) user number. This number serves as your identification and will be transmitted along with your AIS distress call. The number can be found on the back label of your LifeLine GPS.

If your vessel (or the vessel you are travelling with) has a DSC enabled VHF radio, it is recommended to program the vessel MMSI number into your LifeLine GPS. This allows your LifeLine GPS to send a DSC position report directly to the vessel VHF radio by holding down the yellow button for 5 seconds.

This is a line-of-sight marine radio device designed to only provide an effective alerting and locating capability by communicating directly with marine VHF radios and AIS systems on vessels and shore base stations. This radio beacon is NOT an EPIRB or PLB.

Acronym Explanation: For the nautical acronym impaired, AIS stands for Automatic Identification System, which ships and boats use to identify and locate other similarly equipped vessels electronically. DSC stands for Digital Selective Calling, which allows boats to send and receive distress calls via VHF marine radios. MMSI stands for Maritime Mobile Service Identity which is a unique, numeric boat identifier. EPIRB stands for Emergency Position Indicating Radio Beacon, which boats use to transmit a coded message on the 406 MHz distress frequency via satellite and earth stations to the nearest rescue coordination centre. PLB stands for Personal Location Beacon, which works exactly the same as an EPIRB but is registered to a person, not a boat.

Please Note: The Nautilus LifeLine Marine Rescue GPS does not include the marine radio voice send and receive functionality of the original Nautilus LifeLine Marine VHF Radio and GPS device. It can only send a distress signal via AIS and/or DSC.

Download/read the Nautilus LifeLine Marine Rescue GPS Manual (PDF, 7 pages, 3.2 Mb).

Important! The Nautilus LifeLine is an aid to your safety. It is not a life-saving device. It is not intended to save your life. It is intended to aid you in alerting others so that they can then help you.

Not Just For Divers!

While the Nautilus Lifeline Marine Rescue GPS was designed by divers for divers, it has much wider water sports applications. Sailors can now have their own compact personal rescue beacon for man overboard situations. Those out kayaking, canoeing, on jet skis, boating, fishing, or on SUPs can use the Nautilus Lifeline Marine Rescue GPS to summon help if separated from their watercraft. You don't think you need one until you do!

This equipment is intended for emergency use. Do not activate unless in an emergency situation.

(10/22 LHSW)

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