The SME312LPQD is a high-performance photoelectric sensor from Banner Engineering's Mini-Beam Expert Series, featuring a 10-30 VDC power supply with NPN/PNP output options. This polarized retro-reflective sensor offers a 3-meter measurement range, 0.5 ms response time, and 1000 ms turn-on delay, all housed in a durable IP67-rated enclosure (53717).