SeaGuard Bottom Pressure Gauge

Pressure Sensor 4117 is a compact fully integrated sensor for measuring the pressure level and the water temperature. The 4117 sensor is designed to be mounted on the Aanderaa SeaGuard platform or connected to SmartGuard using AiCaP CANbus or as stand alone sensor using RS-232. The sensor is easily integrated in other measurement systems with dataloggers. 
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User Manual
More information can be found on aanderaa