Commercial Door Operator Safety Photo Eye System, Sensing Range (Ft.) 30, NEMA Rating 1, Standards UL325, Volts Range Max. AC 24, For Use With 4GY87, 6UR99, 2TRN1, 2TRN2, 2TRN3, 2TRN4, 2TRN5, 2TRN6, 4UKX6, 4UKX7, Includes Photo Eyes, Bell Wire and...