Whatever application you want to implement, Balluff offers you a wide range of reflective sensors. These enable you to reliably detect objects regardless of their surface, color and material. If you use a polarizing filter, our reflective sensors even enable you to detect shiny objects. The transmitter and receiver are housed in one housing, so that you can easily mount this light barrier and align it easily thanks to generous mounting tolerances. You can choose the right type of light depending on your requirements. Depending on the type, our reflective sensors work with clearly visible red light, invisible infrared light or very precise laser light that is ideal for detecting small parts. Special features = Washdown, Series = 21M, Dimensions = 15.4 x 51.1 x 42.7 mm, Interface = IO-Link 1.1 PNP normally open (NO) PNP normally closed (NC), Operating principle = Optoelectronic sensor, Optical operating principle = Reflection light barrier, Beam characteristics = divergent, Light type = LED red light, Range = 0...10 m, Connection = Plug connector, M12x1 plug, 4-pin, Housing material = Zinc, die-cast, powder-coated zinc die-cast, Active surface, Material = PMMA, Operating voltage Ub = 10...30 VDC, Approval/Conformity = CE, UKCA, cULus, WEEE, Ecolab