Banner Engineering SM31E Mini Beam Through Beam Emitter

The Banner Engineering MINI-BEAM SM31E is a through-beam emitter in Banner’s MINI-BEAM product family, designed to pair with Banner receivers such as the SM3IR to form an opposed-beam sensing setup that detects when the infrared beam is interrupted between emitter and receiver. The SM31E delivers a 3-meter maximum range (approximately 118 inches) and uses an infrared LED as its light source, making it suitable for quick, reliable line-of-sight detection in industrial automation tasks; it is documented as part of Banner's DC voltage MINI-BEAM line. If your application requires a longer reach, Banner also offers the SM31EL emitter with up to 30 meters of range, illustrating the scalable options within the SM31 family for different installation distances and mounting geometries. The SM31E is intended for use with Banner DC receivers to complete the sensing circuit, with typical installations placing the emitter and receiver on opposite sides of a path to monitor beam interruptions.