Photoelectric Switch, Inductive Proximity Switch, Ultrasonic Sensor manufacturer / supplier in China, offering Lorddom Ultrasonic Range Sensor 2m Measuring Range NPN, PNP, 4-20mA, 0-10V, 2NPN, 2PNP, RS485 Outputs IP65 CE RoHS, Waterproof Ultrasonic Sensor Module 6m Water Tank Level Measurement Adjustable IP65 CE RoHS 4-20mA Output, Luoge Ultrasonic Distance Measurement Obstacle Avoidance Sensor Liquid Level Detection Sensing Range 1-6 Meters Millimeter-Level and so on.