The Omron E3Z-D81 is a diffuse photoelectric sensor with built-in amplifier, part of the E3Z series. It uses an infrared LED and a wide beam to detect objects at distances from 5 mm to 100 mm, with a PNP output that switches up to 100 mA. The prewired 2 m cable terminates in bare wires, ready for a terminal block or connector of your choice.
The IP67 rating means the PBT body and optics survive washdown — this sensor is built for wet environments like food processing or wastewater lift stations where a hose-down is routine. The 100 mm diffuse range is short but reliable for presence detection on conveyors or in tight machine cavities; the wide beam pattern gives a generous detection zone without needing a separate reflector or receiver. Response time is 1 ms, fast enough for most packaging and material-handling lines. The Light-ON/Dark-ON mode is selectable via a switch, so you can adapt to background or target color without swapping units. Supply voltage is 12-24 VDC; the PNP output is common in PLC and controller inputs. The right-angle sensor face means the cable exits along the mounting surface, saving clearance in tight panels or machine frames.