SICK WTB4SC-3P2262VA00 Photoelectric sensors. SICK WTB4SC-3P2262VA00 is a photoelectric sensors in the W4 family. SICK identifies this exact configuration as manufacturer article 1097824. The official technical record specifies Functional principle: Photoelectric proximity sensor; Functional principle detail: Background suppression; Sensing range max.: 4 mm ... 180 mm 1); Sensing range: 10 mm ... 180 mm 1); Light source: PinPoint LED 2); Type of light: Visible red light. The linked SICK data sheet is specific to WTB4SC-3P2262VA00.