Retroreflective sensor for glass detection, M18 threaded housing design, plastic housing, front optical face, 2.5 m detection range, red light, light/dark on, DC version, 2 PNP outputs, M12 plug, Efficient Line in a short M18 plastic housing for standard applications, Two devices in one: choice of either clear object detection or retroreflective operating mode with a large detection range, 4