Automated gate safety sensors are legally required devices that prevent injury and property damage. Understanding these systems helps ensure your gate operates safely.
Types of Safety Sensors
Photo Eyes (Infrared Sensors)
Detect objects breaking an invisible beam:
- Transmitter and receiver pair
- Gate reverses when beam is broken
- Required by UL 325 standards
- Most common safety device
Edge Sensors
Detect physical contact with obstacles:
- Pressure-sensitive strips on gate edge
- Reverses on contact
- Backup to photo eyes
- Required for certain gate types
Loop Detectors
Detect vehicles in gate path:
- Embedded in driveway
- Senses metal mass
- Prevents closing on vehicles
UL 325 Requirements
Residential gate operators must include:
- Primary entrapment protection (photo eyes)
- Secondary protection for vehicular gates
- Non-monitored sensors with hardwired devices
- Inherent entrapment protection
Testing Your Sensors
Monthly Photo Eye Test
- Open gate fully
- Place object in beam path
- Activate gate to close
- Gate should stop or reverse
Monthly Edge Sensor Test
- While gate is closing
- Apply pressure to edge sensor
- Gate should immediately reverse
Troubleshooting Sensor Issues
- Photo eyes misaligned: Adjust until LED indicates alignment
- Dirty lenses: Clean with soft cloth
- Wire damage: Inspect for cuts or rodent damage
- Sun interference: Add shading hoods
Professional Safety Inspection
Standard Gate Co provides comprehensive safety inspections. Ensure your gate meets current standards. Call (323) 488-GATE.