SICK WF5-40B410 Fork sensors. SICK WF5-40B410 is a fork sensors in the WF family. SICK identifies this exact configuration as manufacturer article 6028429. The official technical record specifies Functional principle: Optical detection principle; Dimensions (W x H x D): 10 mm x 35 mm x 57 mm; Fork width: 5 mm; Fork depth: 42 mm; Light source: LED, Infrared light; Label detection: ✔. The linked SICK data sheet is specific to WF5-40B410.