SICK WTB4-3N1192 Through-Beam Photoelectric Sensor

SICK WTB4-3N1192 is a through-beam photoelectric sensor from the MultiLine family that detects objects at a short range using a 650 nm red light, with a sensing range of 5–120 mm. The 1059272 part number identifies a 4-wire device with an NPN output configuration and a compact form that mounts via an M3 threaded hole. It features two status LEDs—yellow for the received light beam and green for supply activity—and is supplied with a 4-wire cable, 2 m in length. Ideal for automation lines where background suppression helps prevent misdetection of backgrounds or clutter, such as detecting small parts or ensuring presence/absence on conveyors.