Our light sensors with background suppression detect objects within a set switching distance without being affected by the reflective background. And this is almost independent of the color and surface of the object. Object and background can be reliably distinguished, especially since these light sensors are characterized by their low gray value shift and hysteresis. Since the transmitter and receiver are housed in a space-saving housing, our light sensors are easy to install and quickly align. The clearly visible light beam of the red light and laser versions also supports you. With teach-in or via potentiometer, you can easily adjust many sensor versions. Versions with a fixed switching distance are also available. Series = 21M, Dimensions = 15 x 51 x 42.5 mm, Interface = PNP normally open (NO) PNP normally closed (NC), Functional principle = Optoelectronic sensor, Optical functional principle = Light sensor, triangulation, Optical feature = Background suppression, Beam characteristics = Focus typically at 200 mm, Light type = LED red light, Light spot size = 6 x 6 mm at 200 mm, Range = 1...400 mm, Connection = Plug connector, M12x1 plug, 4-pin, Housing material = Zinc, die-cast, powder-coated aluminum, Active surface, Material = Glass, Operating voltage Ub = 10...30 VDC, Approval/Conformity = CE, UKCA, cULus, WEEE