SICK WT34-V240 Photoelectric sensors. SICK WT34-V240 is a photoelectric sensors in the W34 family. SICK identifies this exact configuration as manufacturer article 1019227. The official technical record specifies Functional principle: Photoelectric proximity sensor; Functional principle detail: Background suppression; Dimensions (W x H x D): 27 mm x 92 mm x 70 mm; Housing design (light emission): Rectangular; Sensing range max.: 100 mm ... 1,200 mm 1); Sensing range: 100 mm ... 1,200 mm. The linked SICK data sheet is specific to WT34-V240.