Panel-fit note — E3Z-LS81 diffuse reflective sensor
The Omron E3Z-LS81 is a diffuse reflective photoelectric sensor in the E3Z family, delivering a 200 mm sensing distance for part-present detection on conveyors, packaging lines, and material handling stations. The PNP output is selectable between Dark-ON and Light-ON via the wiring configuration, which maps directly to sinking PLC inputs without a pull-up resistor. The red LED at 680 nm is visible during alignment and works reliably on matte or colored targets. IP67 sealing means it handles washdown and dusty cabinet environments without a secondary enclosure.
200 mm diffuse reflective range suits a typical conveyor width or a pick-and-place cell where the target passes within that standoff. Diffuse sensing requires a reflective target; it does not need a separate reflector or emitter-receiver pair, which simplifies mounting.