The SARLink™ features a new strobe light function and multi-use GPS acquisition testing. The SARLink™ represents one of the smallest, lightest 406 GPS PLBs in the world. The rugged, one-button activated, emergency signaling device is perfect for outdoor enthusiasts heading into remote areas. The SARLink™ has all new high performance features such as: built-in, super bright LED strobe light increases visibility to Search and Rescue, and onboard 66-channel parallel GPS acquires then transmits LAT/LON when the unit is activated. Exceeds required 24 hours @ -4º F (-20º C). Size: 2.25" x 5.88" x 1.49". Wt: 8.9 oz. w/lanyard.