The Omron E3ZD612MOMI is a diffuse reflective photoelectric sensor from the E3Z series, giving you a 100 mm sensing range with an NPN output. That NPN sink matters if your PLC or controller expects a current-sinking input — this one pulls the line low on detection. It runs on 12-24 VDC, pulls up to 100 mA on the load, and switches in 1 ms. The package is 10.8 mm wide, 20 mm tall, 31 mm deep, and comes with a 2 m cable terminated. Rated IP67, so it takes washdown and dust without a second thought.
The 2 m cable is pre-attached; response time is 1 ms.