Nautilus Lifeline Marine Rescue Waterproof GPS and
Nautilus Lifeline Marine Rescue Waterproof GPS and an Antenna Winder for Accurate Positioning and Distress Alerts, Bundled with a Silicone Pouch and a Lanyard with Two D-Rings ACCURATE POSITIONING: Your GPS position is accurate to within 1.5 meters, and a man overboard distress message will be broadcast up to 55 kilometers (34 miles) away. Additionally, a special DSC message will...