Laser retroreflective sensor, small design, polarization filter, 21 m detection range, laser red light, light/dark on, 1 PNP output/1 NPN output, M12 plug, Series of sensors in a widely used standard housing, Visible red light, pulsed LASER light, Precision: high degree of repeatability thanks to small light spot, Objects can be reliably detected down to 0 mm: no blind zone, Resistant against noise: reliable operation under all conditions