NIR-50 Retroreflective Photoeye Kit – 50 ft Operating Range for Garage Door & Gate Operators

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The NIR-50 Retroreflective Photoeye Kit is a professional safety sensor kit designed for compatible garage door, gate, and access-control operator systems. With a 50 ft operating range, this photoeye kit is commonly used on commercial overhead doors, industrial doors, gated entries, warehouse doors, loading dock doors, and other automated access systems where reliable obstruction detection is required.

A retroreflective photoeye uses one sensor and a reflector to create an infrared beam across the door or gate opening. When the beam is interrupted by a person, vehicle, equipment, pallet, or other obstruction, the operator can stop or reverse according to the control system’s safety logic. This makes the NIR-50 a practical replacement or service part for technicians working on compatible operator safety systems.

The NIR-50 is especially useful where a 50 ft sensing distance is needed and where a retroreflective layout is preferred over a separate transmitter-and-receiver style photoeye. Because only one powered sensor is typically required with a reflector on the opposite side, this style can simplify wiring in many commercial and access-control installations.

Compatibility & Fitment

The NIR-50 photoeye kit is intended for compatible garage door and gate operator systems that accept a retroreflective photoeye safety device. Before ordering, confirm the operator model, control board requirements, voltage, wiring configuration, safety input type, mounting location, and required sensing range.

This product should not be assumed to fit every residential garage door opener or every commercial operator. Some operators require monitored safety devices, brand-specific sensors, or UL 325 compliant monitored photoeyes. If your operator requires a monitored UL 325 photoeye, verify whether the standard NIR-50 is suitable or whether a monitored version, such as the NIR-50-325 style, is required.

Additional brackets, wire, conduit, mounting hardware, or operator-specific accessories may be required depending on the installation.

Key Features

NIR-50 retroreflective photoeye kit
50 ft operating range
Designed for compatible garage door and gate operator systems
Uses sensor-and-reflector beam detection
Helps detect obstructions in the door or gate travel path
Useful for commercial overhead doors and access-control applications
Good option for service replacement and safety-system repair
Retroreflective design can reduce wiring compared with separate transmitter/receiver setups
Suitable for professional garage door, gate, and operator technicians
Part/reference number NIR50

Best Applications

Commercial overhead garage doors
Industrial sectional doors
Rolling steel doors
Warehouse and loading dock doors
Commercial gate operators
Access-control entry systems
Operator safety sensor replacement
Repair of damaged or failed photoeyes
Service truck inventory for garage door and gate technicians
Retroreflective safety beam installations up to 50 ft

Installation Notes

Install the NIR-50 photoeye and reflector according to the operator manufacturer’s wiring diagram and safety-device instructions. The sensor and reflector must be mounted securely, aligned correctly, and positioned so the infrared beam protects the required area of the door or gate opening.

After installation, test the system through multiple open and close cycles. Confirm that the operator responds correctly when the beam is blocked, that the door or gate stops or reverses as required, and that the photoeye does not create nuisance faults from poor alignment, vibration, reflective interference, sunlight exposure, or damaged wiring.

Safety Notice

Garage door and gate operators can cause serious injury, death, or property damage if safety devices are installed incorrectly, miswired, bypassed, or ignored. This product is intended for professional installation by trained garage door, gate, or access-control technicians.

Never bypass or disable required safety devices. Always confirm proper operation of the photoeye, operator controls, reversing system, entrapment protection, and all other safety equipment before returning the door or gate to service.

Why Buy From Garage-DoorParts.com

Garage-DoorParts.com supplies professional garage door, gate, and operator replacement parts for technicians, contractors, service companies, property managers, and knowledgeable buyers. The NIR-50 retroreflective photoeye kit is a practical safety-device replacement for compatible commercial and access-control systems requiring reliable obstruction detection over a 50 ft operating range.

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