CHELSEA TECHNOLOGIES PINGER CONTROL BOX

CONDITION EXACTLY AS PICTURED

The Chelsea Technologies Pinger Control Box (associated with part/serial formats like 2290-028-PL) is an electronic deck unit or interface box used to power, test, and control underwater acoustic pingers manufactured by Chelsea Technologies historically utilized in marine research, oceanographic profiling, and subsea deployments.

Function: Serves as the topside command, telemetry, or power interface for subsurface acoustic pingers—devices attached to oceanographic gear (such as CTD rosettes or towed profiling systems) to track and locate equipment underwater via acoustic pulses.