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The DK120/90 is an underwater acoustic beacon and is the newest version of the industry standard.
Once activated the DK120/90 will provide a minimum of 90 days of continued operation once activated, complying with TSO/ETSO-C121b.
Beacons have been tested to and meet or exceed all requirements of FAA/EASA TSO/ETSO-C121b, SAE AS8045A in with additional test for batteries as per TSO/ETSO-C142a.
Features
Operational at depths of up to 20,000 ft.
Watertight aluminum case [1.3 in. diam., 3.92 in. length (less mount)]
Detectable at a range of 2000 to 4000 yards based on environmental factors
Sustained pressure u to 8700 psi
Water switch actuation initiates beacon operation upon immersion in either fresh or salt water
Battery used to power the DK120/90 will sustain beacon operation for a minimum of 90 days at an acoustic output of 160 dB operating frequency is 37.5 kHz.