The Omron E3S-R1B4 Reflective Photoelectric Switch is a 12-24V DC sensor from Omron’s E3S family that detects targets using reflective optics. As a reflective-type switch, it provides a switching signal when the emitted light is reflected back to the receiver by a nearby object, enabling presence sensing in automation tasks. Model E3S-R1B4 is suited for compact detection on production lines or packaging processes where simple, non-contact sensing of reflective or light-colored targets is required.
