The XUM9APCNM8 is a miniature polarised reflex photoelectric sensor from the OsiSense XU range, running on DC supply. It's a general-purpose single-mode unit — the polarised optics reject false triggers from shiny targets, so it's a solid pick for conveyor or packaging lines where you need reliable detection of opaque objects without background interference.
Mounting is straightforward — the miniature body fits standard sensor brackets, and the plastic housing means no grounding lug required for the sensor itself. DC supply wiring is two-wire or three-wire depending on the output type; verify the load current and cable length against the sensor's rated output before commissioning.