Catch sensor CS-400
Catch sensor for trawl sonar with approx. 1.000 operation hours in sea, with 3pcs of normal LR20 batteries. Stable signal output witch stars when sensor has seawater connections. The clock starts counting 2 minutes after activation of the tension spring. Simple indicator show how many hours the sensor has been active. User-friendly battery that can easily be done on board. Operating frequency is 70 kHz.