The LiftMaster CPS-U Commercial Photo Eyes are dual-sided, through-beam safety sensors designed for monitored entrapment protection on commercial overhead door operators. Supplied as an emitter and receiver pair, these photo eyes create an invisible infrared beam across the door opening; when the beam is interrupted by a person, vehicle, or object, the operator is signaled to stop and/or reverse to help prevent injury and damage. Intended as a replacement or upgrade for worn or non-compliant sensors, the CPS-U integrates with LiftMaster commercial operators that support monitored photo eyes and is commonly used on sectional, rolling steel, and high-speed doors in warehouses, loading docks, parking facilities, and other industrial or commercial environments.
The CPS-U connects to the operator’s monitored safety input and is powered by the operator’s low-voltage accessory output; compatibility may include many LiftMaster Logic 4.0 and Logic 5.0 models—verify requirements in the operator manual for proper wiring and supported monitoring types per UL 325. For best performance, mount the sensors on opposing sides of the doorway near the floor as prescribed by UL 325, align the beam per the installation guide, and function-test the system after wiring and alignment. These commercial-duty photo eyes are engineered for dependable operation in demanding applications and are an ideal fit for buyers searching for LiftMaster CPS-U photo eyes, dual-sided safety sensors, monitored photo beams, or a commercial garage door operator safety sensor replacement.
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