Commercial Door Operator Safety Photo Eye System, Sensing Range (Ft.) 30 ft, NEMA Rating 1, Standards UL325, Volts Range Max. AC 24, For Use With H5011L4L, H5011L4R, Mfr. No. MH5011UR, MH5011UL, MT5011UG-14, T5011L4G-14, T5011L4G-16, T5011L4G-18, T5011L4G-20, T5011L4G-24, Includes Bell Wire, Mounting Brackets, Photo Eyes, 1 Pair