Baomain Photoelectric Sensor E3F-R4P2 Retroreflective Optical Sensor Switch DC 10-30V PNP NC Sensing Distance 4m with Reflector Panel Brand: Baomain A retroreflective arrangement places the transmitter and receiver at the same location and uses a reflector to bounce the light beam back from the transmitter to the receiver. Thread diameter : M18;Type : DC 3 Wire It can be applied in security system,manufacturing industry etc. PNP NC 10-30V DC Sensor M18 Photoelectric Sensor Adjustable Diffuse Reflection Sensor M18 Thread Proximity Sensor Pnp 4 Wire Proximity Sensor Wiring Diagram Voltage :10-30VDC ; Output Current : 200mA , Overall Size : 23., 5 x 77mm / 0., 93'' x 3., 0'' (Max. Optical switch control by infraredray,as proximity sensor,including a transmitter and receiver in it. Diffuse Sensor LED red light PMMA sensing surface ,PNP, NO-NC, M12 con,10-30V - A.S.I Automation Ltd Weight : 65g; Package Includes : 1x Photoelectric Sensor Switch