Tracker avalanche transceivers have long been the fastest, easiest-to-use beacons in the industry. The Tracker4 just took it up a notch, with a rubberized over-molded case, larger LED display, and the same Tracker interface that basically makes it impossible not to find your companion. Signal suppression and Big Picture modes for no-nonsense multiple-victim searching. Motion-sensing auto revert-to-transmit mode. Upgradeable software and electronics performance testing for fleet management. F Tracker4™ Tracker3+™ TrackerS™ Tracker2™ Three Antenna X X X X Temperature Resistant LED Display X X X X Multiple Burial Indicator X X X X Close Proximity Indicator X X X X Mute Mode X X X X Auto Revert Mode X X X X Special Mode X Big Picture Mode X X X Signal Suppression Mode X X X Motion-Sensing Auto Revert X X Upgradeable Software X X S SKU: C2012001010 SIZE: 1SZ WEIGHT: ~ 7.6 oz / 215 g including batteries, not harness DIMENSIONS: ~ 4.7” x 3.0” x 1.0” / 12 cm x 7.5 cm x 2.6 cm FREQUENCY: 457 kHz POWER: Three AAA alkaline batteries MAX RANGE: 55 meters SEARCH STRIP WIDTH: 50 meters BATTERIES: three AAA alkaline BATTERY LIFE: minimum 1 hour in search mode after 200 hours in transmit mode (approximately 250 hours in transmit only or 50 hours in search only) UNIT WEIGHT WITH BATTERIES: 7.6 oz. / 215 grams HARNESS WEIGHT: 4.2 oz / 120 grams ORIGIN: Assembled and tested in the USA PATENT: US Patent #6,167,249 & 6,484,021 B1 CERTIFICATION: Certified to be in compliance with all applicable North American and European norms