All ACR PLBs are made to EXCEED the rigorous testing standards of COSPAS-SARSAT, FCC, NOAA, U.S. Coast Guard and the U.S. Air Force Rescue Coordination Center, for durability, waterproof, flotation, high visibility and extreme operating temperatures at a minimum of 24 hours at -20C (longer at warmer ambient temperatures). Comes complete with a 5 year Lithium Battery and a 5 year warranty from manufacturer. ALL ACR PLBs can be used ANYWHERE in the world!
406 PLB relies on signal triangulation to fix your positon to a general area. Homing frequency guides searchers to your exact location.
GYPSI 406 PLB can be attached to an external GPS allowing it to transmit your exact coordinates. Without GPS plugged in it works like the 406 PLB
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