Cylindrical Ultrasonic Sensor, Case Material Plastic, Diameter 18 mm, Detecting Distance 508mm, PNP Output, Circuit Type NO, Max. Load 40 mA, Electrical Connection 4 Pin M12 Male Connector, Length 3.06 in, Width 0.71 in, Power Required 12 to 24V DC, NEMA Rating 4X, IP Rating 67, Operating Frequency 300 kHz, Standards CE, RoHS, UL, Operating Temp. Range -22 Degrees to 152 Degrees F, Description/Special Features Tamper Proof