Special Features:

Acoustic release transponder relocates and retrieves subsurface moorings in shallow water; operating depth 984 ft.; operates up to 1 year on 8 standard 9 volt alkaline batteries; reply frequencies 7.5 to 15.0 khz in 500 hz. Increments; reply pulse width 10ms; turn around time 12.5ms; lock out time 2 seconds; housing 3.5 in., bar 1.5 in. By 1.5 in. By 25 in.

Properties:

A single component designed for the specific purpose of generating electromagnetic energy for the transmission of underwater sound waves and of intercepting and sometimes presenting intelligence from the received underwater sound waves.