What this part is and where it fits
The Omron E3ZG81M3JOMS is a through-beam photoelectric sensor from the E3Z family, with a PNP output and 25 mm sensing distance. It switches within 1 ms and drives loads up to 100 mA at 12–24 VDC. The M8 4-pin connector saves panel wiring time compared to the cable-terminated variant; just plug into a mating cordset. The 11 mm-wide housing fits in tight spaces where a larger barrel sensor won't.
