... 10m Protection level: IP68,CE Output Voltage:12.6VDC 350mA Output:RS485,4~20mA Ultrasonic Level Sensor UE3000 HOLYKELL small blind precision ... sensors, temperature sensors, ultrasonic servo circuit, display, control signal output, the transmitter circuit as a whole, using SMD chip ... 10V; RS485 or RS232; 1 ~ 4 relay switching value or output: (determined when ordering). Ultrasonic Level Sensor UE3000