Allen-Bradley 42EF-E1EZB-A2 Photoelectric Sensor

Allen-Bradley 42EF-E1EZB-A2 Rightsight Photoelectric Sensor is the transmitter half of Rockwell Automation’s RightSight through-beam pair, delivering a focused infrared beam from an 18 mm cylindrical housing for compact installations. This 11–30 V DC transmitter ships with a 2 m cable and is designed to pair with a matching receiver to form a complete through-beam sensor that detects beam interruptions or target presence along the optical path. As part of the 42EF RightSight family, it uses infrared light for reliable sensing in industrial environments where a clear line of sight between emitter and receiver can be maintained. Common applications include detecting fast-moving parts on conveyors, monitoring entry/exit points on machinery, and other automation tasks that require precise beam-based presence sensing along a defined path. When paired with a companion receiver such as 42EF-R9MNB-A2 or 42EF-R9MPB-A2, the system delivers coordinated emitter-receiver operation characteristic of Rightsight sensors.