Our wide range of light sensors offers you economical solutions if you want to reliably detect contrast differences. These light sensors detect objects depending on their surface, color and material. Their detection range depends on the size, shape, color and condition of the reflective object surface.The transmitter and receiver are housed in a housing, so that you can easily mount the light sensors and align them easily thanks to their clearly visible light beam.You choose the right type of light depending on the application. Depending on the type, our light sensors offer you clearly visible red light, invisible infrared light or very precise laser light that is ideal for detecting small parts.For color-independent and surface-independent detection, we recommend light sensors with background suppression. They work with red light or laser red light that is ideal for detecting small parts. Their detection mode is almost constant even with different degrees of remission. 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), Functional principle = Optoelectronic sensor, Optical functional principle = Light sensor, energetic, Beam characteristics = divergent, Light type = LED red light, Range = 10...1000 mm, 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