SICK WL24-2V530 Photoelectric sensors. SICK WL24-2V530 is a photoelectric sensors in the W24 family. SICK identifies this exact configuration as manufacturer article 1017881. The official technical record specifies Functional principle: Photoelectric retro-reflective sensor; Functional principle detail: With minimum distance to reflector (dual lens system); Dimensions (W x H x D): 27 mm x 87.5 mm x 65 mm; Housing design (light emission): Rectangular; Sensing range max.: 0 m ... 22 m 1); Sensing range: 0 m ... 15 m 1). The linked SICK data sheet is specific to WL24-2V530.