LiftMaster RPEN4-RFLCTR Reflector and Support Housing
The LiftMaster RPEN4-RFLCTR reflector and support housing is the reflector-side replacement part used with compatible retro-reflective photo eye systems, especially the CPS-RPEN4 monitored photo eye. Retro-reflective sensors depend on a clean, stable reflector target across the opening. If the reflector is cracked, cloudy, knocked out of position, or missing its support housing, the powered sensor may not receive the beam correctly. The result can be nuisance reversals, close failures, or monitored entrapment protection faults. This part is used to restore the reflector target without replacing the powered sensor when the sensor itself is still working. Because it is part of a monitored safety system, final alignment and operator safety testing are required after replacement.
Compatible With
Features and Specifications
| Manufacturer | LiftMaster |
|---|
| Product Type | Reflector and support housing |
|---|
| Part Number | RPEN4-RFLCTR |
|---|
| Application | Reflector target for retro-reflective photo eye |
|---|
| Compatible Sensor Family | CPS-RPEN4 and related LiftMaster reflective photo eyes |
|---|
| Compatible Operator Type | Commercial door / perimeter access monitored safety systems |
|---|
| Included Components | Reflector with support housing |
|---|
| Notes | Powered photo eye sensor not included |
|---|
Also Known As / Related Part Numbers
Technician Note
Clean the reflector face and check alignment before replacing parts. If alignment is stable but the reflector is cracked, sun-faded, or physically damaged, replacement is usually the correct repair.
Before Ordering Checklist
- Confirm the sensor system uses CPS-RPEN4 or another listed compatible reflector.
- Check whether only the reflector is needed or the complete photo eye kit is damaged.
- Inspect mounting bracket and hardware for movement.
- Clean and align the reflector after installation.
- Test the monitored safety input through a full operator cycle.
Professional Advisory
A reflector is part of the monitored entrapment protection system. The door or gate should not be operated without working safety devices and proper beam alignment.
Important Ordering Warnings
- This part is not the powered photo eye sensor.
- Do not bypass the monitored safety input if the reflector is damaged.
- Do not substitute a random reflector that is not designed for the compatible LiftMaster sensor.
Product Questions and Answers
What does RPEN4-RFLCTR include?
It is the replacement reflector with support housing for compatible LiftMaster retro-reflective photo eye systems.
Which photo eye is the main compatibility match?
The strongest match is the LiftMaster CPS-RPEN4 monitored retro-reflective photo eye system.
Is this the powered photo eye sensor?
No. RPEN4-RFLCTR is the reflector and support housing only. It does not include the powered sensor or operator wiring.
What other related photo eye references appear with this reflector?
Some references associate it with LMRRUL, LMTBUL, and CPS-RPEN4 safety eye applications.
What happens if the reflector is dirty or damaged?
A dirty, cracked, misaligned, or missing reflector can prevent the sensor from seeing the beam and may cause monitored safety faults or prevent closing.
