... 12.6VDC 350mA Output:RS485,4~20mA Ultrasonic Level Sensor UE3000 HOLYKELL small blind precision ultrasonic sensors, designed for ... board all the gold-plated, internal electromagnetic shielding letter software digital filter (industrial grade) factory, 48 hours after high- ... or a M49 × 1.5's gong jack.Ultrasonic Sensor Main technical characteristics: 1, non-contact measurement, environmental protection ...