Description
Exact product name available on branded site:
771E Failsafe Infrared Safety Sensor
771E Failsafe Infrared Safety Sensor
Slug
liftmaster-771e-failsafe-infrared-safety-sensor
Product Description
The LiftMaster 771E Failsafe Infrared Safety Sensor is a replacement photocell set used in compatible gate motor control systems to detect obstructions across the closing path. Installed as part of the safety circuit, it helps the operator respond correctly when the beam is interrupted. This spare part is important during repair and maintenance when the original sensor pair is damaged, unstable, or no longer communicating properly. For buyers in Abu Dhabi and across the UAE, it is a practical OEM replacement that helps restore dependable operation, reduce service delays, and maintain safe gate performance.
Key Features and Technical Specifications
- Official product name: 771E Failsafe Infrared Safety Sensor
- Spare-part category: photocell / failsafe infrared safety sensor
- System type: 2-wire system
- Protection rating: IP44
- Current consumption: maximum 20 mA
- Maximum range: 10 m
- Operating temperature: -40°C to +60°C
- Status indication: LED for continuity indication
- Mounting type: surface mounted
- OEM status: official LiftMaster / Chamberlain part
- Official compatibility reference: for CB3 and LiftMaster garage door openers
- Also referenced in Chamberlain CB11 and CB22 control panel documentation
Main Benefits for the Customer
- Restores obstruction detection in compatible gate motor systems
- Reduces downtime during maintenance and repair work
- Helps maintain smooth and reliable closing operation
- Exact OEM-type solution for faster replacement
- Avoids unnecessary replacement of the full control setup
- Supports safe daily gate use in residential and commercial properties
- Suitable for protected outdoor installations in UAE conditions
- Cost-effective repair option for faulty or intermittent photocells
Use Cases
- Sliding gate motor repair
- Swing gate maintenance
- Safety sensor replacement during technician service visits
- Residential villa gate repair
- Commercial property gate system servicing
- Emergency gate motor breakdown fixes
- Preventive maintenance replacement
- Control panel troubleshooting on compatible LiftMaster / Chamberlain systems
Compatibility and Installation Notes
- Compatible with LiftMaster systems using a matching 2-wire photocell input
- Officially referenced for CB3 systems
- Also referenced in CB11 and CB22 control panel documentation
- Suitable where the operator requires a failsafe infrared safety sensor
- Confirm system compatibility before replacement
- Confirm wiring and control board requirements before installation
- Transmitter and receiver must be mounted correctly across the protected path
- Installation by a qualified technician is recommended
- Disconnect power before fitting or servicing the sensor pair
- This part is a photocell sensor, not a motor capacitor, limit switch, encoder board, gearbox assembly, drive pinion, solenoid lock, or motor bracket
Packing Includes
| Item | Detail |
|---|---|
| 1 | 771E Failsafe Infrared Safety Sensor |
| 2 | Accessories not specified by the official source |
| 3 | Manual not specified by the official source |
For full product verification, refer to the official documentation.
Buy Now
Keep Your Gate Running Without Delays
Call/WhatsApp: +971 54 482 5472
Total Number of Words: 385
OEM 2-wire failsafe infrared safety sensor for compatible LiftMaster gate systems, restoring obstruction detection and stable safety circuit operation during repair or replacement work.

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