M18 cylindrical photoelectric sensors The OsiSense XU general purpose photo-electric sensor from Schneider is available in single mode or multi-mode versions in the following formats: Reflex (XUB 1); Thru-beam (XUB 2); Diffuse (XUB 4); Diffuse with adjustable sensitivity (XUB 5); Polarised reflex (XUB 9). M18 cylindrical photoelectric sensors in plastic or metal housingShort-circuit protection and LED status indicatorSingle or multi-mode function2m cable or M12 connector (4 pin) output