... Voltage:12.6VDC 350mA Output:RS485,4~20mA Ultrasonic Level Sensor UE3000 HOLYKELL small blind precision ultrasonic sensors, designed for ... 49mm or a M49 × 1.5's gong jack.Ultrasonic Sensor Main technical characteristics: 1, non-contact measurement, environmental protection, ... : - 40 °C ~ 85 °C Display: LED digital tube or LCD backlight display more information Display resolution: d = 1mm/1cm calibrated ...