When you’re out on the water—whether diving, sailing, paddleboarding, or just cruising—safety isn’t optional. The LifeLine GPS is a compact, waterproof emergency signaling device that broadcasts your exact location to nearby vessels via AIS & DSC. No subscription. No monthly fees. Just peace of mind built into a rugged, handheld tool.

Key Features & Benefits

Distress + Position Advisory Signaling: Push the red “Help” button for a distress alert, or use the position advisory mode if you’re not yet in full emergency—vessels with AIS/DSC in range will see you.
Waterproof to 425 ft / 130 m (with cap closed): Dive freely with confidence—this device tolerates deep dives when properly sealed.
Floats & Built for the Elements: Positively buoyant, with durable housing and components that withstand salt, surf, and sun. Food-grade polycarbonate and stainless stainless components resist corrosion.
No Subscription, No Monthly Costs: Activate when needed. Transmits distress to nearby vessels via AIS/DSC. No licensing, no registration required.
5+ Year Battery Life: Use it for years—just swap out the power cells when needed. Ideal for adventure trips and travel gear.
GPS Accuracy: When rescue depends on precision, you want accuracy. The LifeLine offers location accuracy about 1-1.5 m.
Transmission Range up to ~34 miles (55 km): With favorable conditions and elevated antenna on receiving vessels, your signal can reach far; enough to alert large ships in range.
Compact, Lightweight Design: At ≈ 131 g with batteries, and only ~3 x 3.8 x 1.5 in (75 x 97 x 39 mm), it fits in your gear without drag

Specifications

- Model: GPS-001
- Depth Rating: 425 ft / 130 m (with cap closed)
- Battery Type: 2 × CR123 3V lithium batteries (user-replaceable)
- Dimensions: 2.9 × 3.8 × 1.5 in (≈ 75 × 97 × 39 mm)
- Weight: ≈ 4.6 oz (≈ 131 g) with batteries installed
- Operating Temperature: –25 °C to +55 °C (-13°F to +131°F)
- AIS/DSC Frequencies: AIS 1 (161.975 MHz), AIS 2 (162.025 MHz); DSC on 156.525 MHz
- Materials: Polycarbonate body, stainless steel hardware

What’s in the Box

- Marine Rescue GPS unit (GPS-001)
- Quick Start Guide
- Optional pouches (neoprene or silicone) available for attachment and protection

Ideal Use Cases

- Solo or group diving trips—especially in remote locations
- Boating, kayaking, paddleboarding, or sailing where one may drift or get separated
- Long offshore journeys or day trips where rescue visibility is crucial
- Anyone who wants emergency signaling without ongoing fees or subscriptions

Why It’s Worth Owning

This isn’t just a safety device—it’s insurance you hope never to use. The LifeLine GPS gives you:
- Rapid alerting if things go wrong
- Reliable signaling without cost or complexity
- Compact peace-of-mind gear that doesn’t get in the way until you need it

FAQs

1. Do I need a subscription to use the Nautilus LifeLine GPS?
No. The LifeLine GPS does not require any subscription or monthly fees. It transmits AIS/DSC signals directly to nearby vessels.

2. How deep can this GPS be taken underwater?
It is waterproof up to 425 feet (130 meters) when the cap is securely closed, making it ideal for scuba divers.

3. What is the signal range of the Nautilus GPS?
In optimal conditions, the signal can reach up to 34 miles (55 km) to ships with AIS and DSC receivers.

4. What type of batteries does it use, and how long do they last?
It operates on two CR123 lithium batteries, which provide a 5-year shelf life before needing replacement.

5. Can I use this GPS anywhere in the world?
Yes. The Nautilus LifeLine GPS is designed for global use and works with all modern vessels equipped with AIS or DSC technology.

6. Is it difficult to operate during an emergency?
No. Simply flip open the cap and press the red HELP button to send an emergency distress signal. You can also send a position advisory if it’s not life-threatening.

7. Can this device float if dropped in the water?
Yes, the Nautilus GPS is buoyant and designed to float, making it easy to recover if dropped at the surface.

8. Who can pick up the distress signal from this device?
Any nearby vessel with AIS and/or DSC-equipped radios can receive your distress signal and position data.

9. Is it suitable only for divers?
No. While popular among scuba divers, it is also a valuable safety tool for sailors, kayakers, fishermen, and other boaters.

10. What comes in the package with the Nautilus LifeLine GPS?
The box includes the Nautilus LifeLine Marine Rescue GPS (GPS-001), protective case, lanyard, and instruction manual.

Nautilus LifeLine Marine Rescue GPS – Pocket-Sized Sea Safety Device

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