SICK WTF26P-24161420A00 Photoelectric sensors. SICK WTF26P-24161420A00 is a photoelectric sensors in the W26 family. SICK identifies this exact configuration as manufacturer article 1113470. The official technical record specifies Functional principle: Photoelectric proximity sensor; Functional principle detail: Foreground suppression; Sensing range min.: 0 mm; Sensing range max.: 800 mm; Adjustable switching threshold for background suppression: 200 mm ... 800 mm; Reference object: Object with 90% remission factor (complies with standard white according to DIN 5033). The linked SICK data sheet is specific to WTF26P-24161420A00.