SICK Miniature photoelectric sensors, W4S-3, WTB4S-3N1131, Sensing range max.: 4 mm ... 120 mm, Sensor principle: Photoelectric proximity sensor, Detection principle: Background suppression, Switching output: NPN, Switching mode: Light/dark switching, Connection type: Cable, 4-wire, 2 m, Light source: PinPoint LED, Adjustment: Potentiometer, Communication interface: -
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