The SM312D is Banner Engineering’s MINI-BEAM diffuse photoelectric sensor, a self-contained DC-operated unit that detects nearby targets within 380 mm using an infrared LED. It powers from 10–30 V DC and provides a bipolar output (1 NPN and 1 PNP) with a 4‑pin configuration, shipped with a 2 m integrated cable for straightforward wiring. Built for harsh environments, the rectangular housing offers M18 mounting and an IP67 rating (NEMA 4X compatibility when installed), and the output can be configured for either dark‑on or light‑on operation to fit your process needs.
