The high-level high-level alarm system and sewage well alarm system are suitable for the liquid cargo tanks of oil tankers, chemical tankers, as well as the ballast water tanks and sewage wells of marine special ships. They can centrally monitor the liquid level in the tanks, and when the preset high-level/high-level alarm liquid level is reached, corresponding alarms and monitoring instructions will be issued. It can extend the alarm or multiple remote alarm diplopia devices, automatically detect power and sensor failures, and issue sound and light alarms. Complies with the requirements of SOLAS Convention and IMO, adopts dual power supply, has automatic uninterrupted switching function, simple and reliable system operation, and stable operation.
