Product Data Sheet SICK WT34-R220 Photoelectric proximity sensor 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 ... 2,500 mm Sensing range 100 mm ... 2,500 mm Type of light Infrared light Light source LED Light spot size (distance) Ø 80 mm (2,500 mm) Adjustment Potentiometer