Camden CM-RQE70ABK PIR Request to Exit Detector

We have deployed the Camden CM-RQE70ABK in hospitals, high-security labs, and corporate office parks where tailgating at exit doors was a documented compliance gap. The PIR-based RTE workflow is not new, but the CM-RQE70ABK brings reliability and simplicity to an older use case. The wired relay architecture means zero integration complexity — a door controller with a spare motion input becomes a PIR-gated exit in under two hours of installation and test time. The 30VDC specification keeps power requirements modest; you are drawing milliamps from an existing power supply, not adding a new circuit. What differentiates this product from competing PIR RTE detectors is its straightforward relay output and lack of wireless dependencies. In environments where RF density is high (hospitals with hundreds of badge readers, manufacturing floors with mobile equipment), a hardwired sensor outperforms anything requiring WiFi or subchannel bidding. It just works.

Technical Highlights:

• PIR Sensor Design: Passive infrared motion sensing requires zero active RF transmission — integrates cleanly into secure facilities where wireless is restricted or monitored. The detector sees changes in thermal radiation as an occupant moves; very low false-positive rate in static environments (empty hallways, parked vehicles).
• 30VDC Low-Voltage Supply: Sourced directly from standard door strike power supplies or dedicated access control UPS modules. No isolated 12V supply branch needed; integrates into legacy 30VDC panel wiring. Single power loop simplifies field troubleshooting and reduces single points of failure vs. multi-voltage architectures.
• Relay Output, Not Analog: Output is a simple contact closure (motion detected) or open (no motion). Access control panels expect binary signals — no analog tuning, no voltage-level interpretation. Integrators who have dealt with analog motion sensors appreciate the reliability of a discrete relay state.
• Thermal Operating Range (−4°F to +185°F): Accommodates climate-controlled indoor spaces and heated vestibules. Not rated for unheated outdoor loading docks or freezing freight areas — if your exit is exposed, request environmental specs before purchase.
• Compact Physical Profile: Mounts in standard plate-frame exit hardware or recessed in doorframe mullion. Aesthetically lower-profile than larger motion detectors or photocell RTE units, important for customer-facing lobbies and high-end office environments.

Deployment Considerations:

• Sensor Sensitivity Tuning in Field: PIR motion detection is distance-dependent and angle-sensitive. A detector mounted 4 feet above the exit threshold sees a different motion signature than one at 2 feet. Install, test with slow and fast walking speeds, and adjust mounting height if false triggers occur. Document your final position — maintenance staff who remount it carelessly will reintroduce false unlocks.
• Avoid Direct Sunlight and Thermal Gradients: Sunlight warming the detector lens or HVAC air jets crossing the sensor can trigger spurious motion signals. Position the device to minimize radiant heat and air flow interference. In vestibules with strong sunlight, a sun shade or recessed mounting is worth the installation effort.
• Relay Output Polarity and Panel Input Type: Confirm whether your access control panel expects a normally-open or normally-closed contact closure for the motion input. Camden's wiring diagram clarifies this — verify before first power-up to avoid inverting the logic and creating a permanently unlocked exit.
• Integration with Credential Readers: If your exit uses a credential reader (card, PIN, biometric), the PIR output typically gates the reader's unlock relay rather than replacing it. Check your reader's input specifications — some expect analog voltage thresholds, others simple contact closures. Legacy wired readers accept contact closure; newer smart readers may require metadata API calls.
• Maintenance and Cleaning: PIR lens accumulates dust and airborne particulates. A quarterly wipe with a soft, dry cloth maintains sensitivity. If your facility has high dust load (manufacturing, construction sites), increase cleaning frequency to monthly. A degraded or dirty lens reduces motion detection range and increases false negatives (users complain the door won't open).

The Camden CM-RQE70ABK is the right choice for integrators who need reliable, low-overhead PIR-based request-to-exit in wired access control systems. It's not a smart sensor — it does one job, does it consistently, and integrates into 20-year-old door controllers without firmware updates or cloud gateways. If your client's facility requires tailgating prevention, PIR RTE is a proven, cost-effective control. Explore the full Camden catalog for additional request-to-exit and credential solutions.