

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The OPTEX OA-FLEXT is an active infrared presence sensor designed for detection applications where reliable, continuous monitoring is required. Active infrared technology works by projecting an infrared beam and measuring its interruption or reflection to confirm the presence of a person, vehicle, or object within the detection zone. This type of sensor is commonly installed by licensed electricians and security system technicians as part of access control, automatic door, or perimeter monitoring systems. The OA-FLEXT falls within the photo beam category, meaning it operates on a transmitted-beam or reflective principle suited to defined detection corridors.
The OA-FLEXT is suited for both commercial and light-industrial installations where a discrete, low-profile presence sensing solution is needed. Typical applications include automatic sliding or swing door activation, gate control systems, elevator presence detection, and access point monitoring. It is sold as an individual unit and is intended for integration into a broader detection or control system. Installation and commissioning should be performed by a qualified technician familiar with low-voltage sensor wiring and applicable local codes.
Designed as an OEM-style active infrared presence sensor for integration into commercial access control, automatic door, and perimeter detection systems where a photo beam sensing device is required.
Installation should be performed by a licensed electrician or qualified low-voltage technician in accordance with applicable local electrical codes. Disconnect and lock out all power to the control system before wiring or mounting the sensor. Align the transmitter and receiver axes carefully per manufacturer documentation to ensure consistent detection performance. Do not expose the sensor to direct sources of intense IR radiation, such as unshielded sunlight, that may interfere with detection reliability.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!