LiftMaster Monitored Retro-Reflective Photo Eyes | LIF-LMRRUL 10-8021 and within a relative humidity

and within a relative humidity range of 15% to 85% (non-condensing)

and 3 clip leads for the RS-232 interface

/ Standard Control Box: 13 lbs

LiftMaster G203075T

LiftMaster Monitored Retro-Reflective Photo Eyes | LIF-LMRRUL 10-8021 and within a relative humidityLiftMaster Monitored Retro Reflective Photo Eyes LIF LMRRUL Enhanced retro reflective photo eye now with heater and wider beam, engineered to stay aligned; maximum range: 50 feet. Includes Steel sensor hood Durable polyethylene reflector hood 10 ft. wire Brackets Mounting hardware Features Long Range Sensing distance up to 50 ft. Increased beam angle for simple, reliable alignment. Built In Heater for dependable performance in most environments.