IRR-7R Retro-Reflective Photocell Sensor (7m Detection Range with Reflector Mirror)
✓ Long Protection Range: 7-Meter (23ft) optical sensing distance with high-efficiency reflector mirror
✓ Single-Side Wiring: No trenching or paving cables across driveways; power only required on sensor side
✓ Wide Voltage Compatibility: 12–24V AC/DC input with universal dry contact Relay Output (NO/NC/COM)
✓ High-Speed Response: ≤3ms optical trigger ensures immediate obstruction detection & anti-crush safety
✓ Rugged & Weatherproof: Heavy-duty IP66 ABS+PC housing built for extreme outdoor environments (-10°C to +55°C)
Original price was: $109.00.$79.00Current price is: $79.00.
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IRR-7R Retro-Reflective Photocell Sensor Overview
The IRR-7R Retro-Reflective Photocell Sensor delivers commercial-grade entrapment protection for automated gate systems, boom barriers, and industrial doors. By emitting a modulated infrared beam that reflects off a precision micro-prism mirror, it establishes an invisible safety barrier. Any interruption by vehicles, pedestrians, or equipment instantly breaks the optical circuit and sends a stop or reverse command to the controller board.
✓ Ultra-Fast ≤3ms Response Loop: Eliminates latency for high-speed roller doors and fast-closing security gates.
✓ Built-in Circuit Safeguards: Integrated short-circuit and reverse polarity protection prevent wiring mishaps.
✓ High Environmental Immunity: Resists ambient light interference, temperature drift (<±10%), and outdoor moisture.
TECHNICAL SPECIFICATIONS & DIMENSIONS
| Technical Parameter | Specification Details |
|---|---|
| Model | IRR-7R |
| Detection Method | Retro-Reflective (Mirror Reflection) |
| Sensing Range | Up to 7.0 meters (23 ft) |
| Standard Target | >= 75 mm Opaque Object |
| Operating Voltage | 12-24V AC/DC |
| Output Type | Dry Contact Relay (NO / NC / COM) |
| Response Time | <= 3 ms |
| Current Consumption | Standby: 12 mA / Active: <= 31 mA |
| Contact Capacity | 30VDC 1A / 125VAC 0.5A / 60VDC 0.3A |
| Ingress Protection | IP66 Waterproof and Dustproof |
| Housing Material | Heavy-Duty ABS + PC |
| Dimensions | 52.7 mm x 19.2 mm x 52.1 mm |
| Cable Specification | 2.0m 5-core shielded cable (OD 5mm) |
| Operating Temp | -10°C to +55°C (14°F to 131°F) |
Mechanical Dimensions (mm)
WIRING DIAGRAM & INSTALLATION GUIDE
Pre-Wired 5-Core Industrial Cable Definition:
Red Wire: Power Positive + (12–24V AC/DC)
Black Wire: Power Negative – / Ground (GND)
White Wire: COM (Common Dry Contact)
Green Wire: NO (Normally Open Output)
Yellow Wire: NC (Normally Closed Output)
APPLICATIONS & WHAT'S IN THE BOX
The IRR-7R optical retro-reflective sensor provides commercial-grade anti-crush safety and presence detection across automatic access systems:
Automated Driveway Gates: Prevents motorized swing and sliding gates from closing on passing vehicles, pedestrians, or pets.
Commercial Boom Barriers: Fast-response anti-smash vehicle detection for parking lot entries and toll gates.
Industrial Overhead Doors: Safeguards factory rapid roll-up doors, sectional doors, and loading docks against crushing accidents.
Perimeter Intrusion Sensing: Reliable non-contact infrared trip beam for restricted industrial corridors.
What’s in the Box (Complete Standard Kit):
1x IRR-7R Retro-Reflective Optical Sensor Unit
1x High-Efficiency Micro-Prism Reflector Mirror
1x 2.0-Meter 5-Core Pre-Wired Connection Cable
1x All-Weather Heavy-Duty Fixing Support Bracket
2x Mounting Screw Sets (4*27.5mm)
1x Installation Manual & Wiring Specification Guide
FREQUENTLY ASKED QUESTIONS
Q1: Why choose a retro-reflective sensor over a standard through-beam photocell?
A: Standard through-beam sensors require running power cables to both sides of the driveway, requiring costly trenching. The IRR-7R requires wiring on only one side; the opposing side uses a passive reflector mirror, cutting installation time by over 70%.
Q2: Is this sensor compatible with both 12V DC and 24V AC control boards?
A: Yes. The IRR-7R features an internal wide-voltage rectifier supporting 12–24V AC/DC, making it plug-and-play compatible with all major residential and commercial gate opener brands.
Q3: How do I select between NO (Normally Open) and NC (Normally Closed) output?
A: Wire the White (COM) terminal together with either the Green wire for NO circuits or the Yellow wire for NC circuits according to your gate control panel’s safety input terminal requirements.
Q4: How does it perform in severe outdoor weather (rain, snow, fog)?
A: Built with an IP66-rated ABS+PC enclosure, the sensor prevents moisture intrusion. For areas with frequent driving rain or snow, positioning the reflector under a small protective hood is recommended to keep the optical prism clear of water film buildup.