Banner Engineering SM312LVAGQD Photoelectric Sensor

The Banner Engineering SM312LVAGQD is a polarized retroreflective Mini‑Beam photoelectric sensor that detects targets from 50 mm up to 2 m, making it well suited for inline sensing on conveyors and packaging lines. It operates on 10–30 V DC and provides two outputs (one NPN and one PNP) via a 4‑pin M12 integral quick‑disconnect, enabling straightforward integration with common control systems. The rugged housing is thermoplastic polyester reinforced with PBT, fully encapsulated with an O‑ring seal, and uses an acrylic lens with stainless steel mounting screws for durability in industrial environments. Use polarized models like SM312LVAGQD when sensing shiny or reflective surfaces, and pair it with a Banner reflector (e.g., BR‑3) for retroreflective operation.