Banner Engineering SM31EQD Mini-Beam Photoelectric Sensor

The Banner Engineering SM31EQD Mini-Beam Emitter is a compact 3 m‑range infrared emitter for the Mini‑BEAM DC Voltage Series, designed to pair with a compatible receiver in opposed‑mode through‑beam configurations. It operates on 10–30 V DC and uses a 4‑pin M12 integral quick‑disconnect (QD) connector for field wiring. The unit is IP67‑rated and NEMA 4X compatible, making it suitable for dusty, wet, and washdown environments. As the emitter half of a through‑beam system, it supplies the infrared sensing beam (IR LED) to be detected by the receiver; there is no output on the emitter itself (Output: Not Applicable). The model suffix “QD” indicates the 4‑pin M12 quick‑disconnect variant, and this device belongs to Banner’s MINI‑BEAM DC Voltage Series. Typical applications include inline sensing on conveyors and other automation tasks where beam interruption signals the presence or absence of a part.