The ALLEN BRADLEY 42GRU-92L0-QD is a polarized retro-reflective photoelectric sensor from the 42GRU series, featuring LaserSight technology with a sensing range of 40 meters. It operates on 10-30 VDC power supply and offers light/dark selectable operation with PNP/NPN output configuration. The sensor comes with a 4-pin DC micro QD connector. This product includes Radwell's 2-year warranty (original factory warranty not applicable).