... 12.6VDC 350mA Output:RS485,4~20mA Ultrasonic Level Sensor UE3000 HOLYKELL small blind precision ultrasonic sensors, designed ... to extremely harsh environmental conditions. It combines ultrasonic sensors, temperature sensors, ultrasonic servo circuit, display, control signal output, ... or a M49 × 1.5's gong jack.Ultrasonic Sensor Main technical characteristics: 1, non-contact measurement, environmental ...