This is a JOWA Seaguard 15 ppm bilge alarm, a marine device used to monitor the oil content in treated bilge water.
- It monitors the effluent from an oily water separator to ensure the oil content does not exceed the legal limit before discharge into the sea.
- The alarm has two output signals that are triggered if the oil content exceeds the 15 ppm threshold specified by IMO regulations.
- An automatic flushing function is included to keep the sensor clean.
- The system logs data onto an SD card for record-keeping purposes.




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