... level monitoringAC220V or 110V, 8'' colorful touch-screen,RS-485 comm.port.connects to 6 tanks, real time monitoringWindbell automatic ... if need. Real-time monitoring oil level, water level and temperature. Real-time clock Automatic adjustment on volume chart 2 RS- ... report. Self diagnosis and trouble alarm Customer setting oil level, water level, and temperature alarm, visible and audible Alarm for ...