GME SR500 AIS Search and Rescue Transmitter Beacon SART GPS 1W EIRP 96h 6y BATGME SR500 AIS Search and Rescue Transmitter Beacon SART GPS 1W EIRP 96h 6y BAT Brand new with warranty. It comes with a brand new battery which expires after 6 years from purchase date. You will receive what you can see on the photo. The SR500 SART is a self contained, waterproof rescue beacon that transmits an Automatic Identification System (AIS) distress signal upon activation in an emergency. The transmitted signal contains the position of the