Banner Engineering SM312LVQD Mini Beam Photoelectric Sensor

The Banner Engineering SM312LVQD Mini-Beam Photoelectric Sensor is a compact, self-contained retroreflective sensor that detects objects at a distance up to 5 meters using a visible red beam (650 nm). It operates from 10 to 30 V DC and provides discrete bipolar outputs (one NPN and one PNP) via a 4‑pin M12 integral quick-disconnect, making wiring straightforward for industrial controllers. Encased in a thermoplastic rectangular housing with M18 mounting, the unit is IP67-rated (NEMA 4X) for dust and water protection, suited to harsh factory environments. As part of Banner’s MINI-BEAM family, the SM312LVQD features non-polarized retroreflective sensing in a compact, easy-to-mount package. Typical applications include presence/absence detection on conveyors, packaging lines, and other automation tasks where reliable, low-maintenance sensing is required in tight spaces. Key specs: 10–30 V DC supply, 4 wires, 5 m maximum sensing distance, red 650 nm LED, retroreflective, non-polarized, 4‑pin M12 QD, and IP67/NEMA 4X enclosure.