You hope for the best on every trip into the wilderness, but you always plan for the worst. The ACR TerraFix 406 GPS I/O Personal Locator Beacon is the ultimate last resort in the backcountry. FCC-Approved, the TerraFix 406 GPS I/O uses an onboard GPS to fix your position, then transmits a distress signal that is detected by the 406 MHz COSPAS-SARSAT system. The signal is encoded with your unique identification number and GPS coordinates, so rescuers know who theyre looking for and where the signal is coming from. The TerraFix also emits a 121.5 MHz homing signal that lets Search and Rescue teams get a fix on your precise position. The TerraFix is waterproof and floats for backcountry and nautical use. It is small and light enough to fit into a pocket or keep close at hand in the included holster. The TerraFix 406 can be registered online and requires no subscription fees. Available for US shipment only.