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The OPTEX EX-35RI is a wireless passive infrared (PIR) motion detector designed for professional security and access control installations. Operating without a wired connection to the control panel, it transmits motion detection signals wirelessly, reducing installation complexity in both new construction and retrofit applications. The unit provides a 35 by 35 foot detection pattern as well as an alternate 55 by 5.5 foot curtain zone, giving installers flexibility to match coverage to the protected space. Licensed security technicians and low-voltage installers are the primary trades that deploy this device in commercial and residential alarm systems.
The EX-35RI suits applications where running wire is impractical or cost-prohibitive. Its dual-zone coverage options make it appropriate for open floor plans requiring broad area detection or narrow corridor monitoring. The wireless format integrates with compatible wireless receiver systems, making it a practical choice for retrofit projects in occupied spaces where surface-mounted conduit runs are undesirable. A single unit is included per package.
Designed for use with compatible OPTEX wireless receiver systems; consult the EX-35RI product data sheet and your wireless panel documentation to confirm protocol and frequency compatibility before installation.
Installation should be performed by a licensed low-voltage or alarm systems technician in accordance with applicable local codes and NFPA 72 requirements. Before servicing or replacing any detector in an active system, disarm the panel and notify the monitoring station to prevent false alarms. Mount the device at the manufacturer-recommended height and angle to achieve the rated detection pattern; improper positioning will reduce coverage. Do not install in areas with direct sunlight, HVAC discharge, or other heat sources that can cause false triggers.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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