W8 Series Photoelectric Sensors Sick W8 series high-quality, miniature photoelectric sensors are specially designed for close-range applications. Autocollimation, background suppression, and high switching frequencies of 2 kHz make these sensors ideal for a broad range of applications. The housing is designed with M3 threaded mounting holes that provide easy and secure mounting. Miniature housing with M3 threaded mounting holes Switching frequency up to 2 kHz Stainless steel mounting bracket W2 To W34 Series Block Style Note For retro-reflective sensors a suitable reflector is required. For PL80A, PL30A & C110 reflectors see stock nos. 265-2776 , 265-2760 & 265-2748 respectively. *Guaranteed operating distances. Maximum sensing distance may be up to double the figure shown.