The Omron EE9-C02 is an active Photomicrosensor — built for wafer carrier position detection in semiconductor handling kit. NPN output, Light-ON logic, and a 3 mm max sensing distance mean it's a close-quarters spotter, not a long-range eye. Pre-wired with 2 meters of cable, so it tucks into a tight bracket feed.
That left-hand corner pedestal (special feature) locks the orientation in place — if you're replacing an existing mount, check which side the cable exit faces before you open the panel. GaAs infrared LED source keeps the beam stable through dust or debris that wanders into a wafer-handler.