Banner Engineering SM31RFQD Photoelectric Sensor

The Banner Engineering SM31RFQD is a Mini-Beam photoelectric sensor receiver built for compact, rugged object detection in demanding industrial environments. This DC-powered device operates from 10–30 VDC and uses a 4‑pin M12 quick-disconnect (QD) wiring option, consistent with Banner’s QD family. It is housed in a thermoplastic rectangular enclosure with an M18 mounting interface for secure installation in tight spaces. A infrared sensing beam is used, and the SM31RFQD functions as the receiver in an opposed sensing configuration, delivering a discrete output when the beam is interrupted. With an IP67 enclosure rating and NEMA 4X protection, it withstands dust, splashes, and washdown conditions typical of modern production lines. As part of the Mini-Beam Series, this model is designed to integrate with Banner emitters and other system components, offering reliable sensing in a compact form factor. The suffix QD denotes the four‑pin M12 quick-disconnect wiring option, enabling fast, rugged field connections without compromising performance.