SICK WTV18-2P420F2 Through-Beam Photoelectric Sensor

SICK WTV18-2P420F2 is a compact through-beam photoelectric sensor system from SICK’s WTV18 family, designed for reliable object detection on conveyors, packaging lines, and automated manufacturing setups. It operates on a 10–30 VDC supply and uses infrared light at 880 nm, delivering a light spot of about Ø8 mm at 200 mm distance. The sensing range spans 300 mm up to 1,400 mm depending on target remission, with V-optics optimized for surfaces that reflect 90% remission per DIN 5033. A nine-turn potentiometer enables precise setup tuning, while the through-beam configuration employs separate emitter and receiver housings for robust performance in bright environments and longer-distance sensing. With a switching frequency of at least 2 kHz, it accommodates fast-moving parts and high-speed packaging lines. Common applications include presence/absence sensing on conveyors, end-of-line counting, and process automation where reliable line-of-sight detection is required. The WTV18-2P420F2 represents SICK’s emphasis on compact, field-proven digital sensing solutions that deliver dependable performance in demanding industrial environments.