Qolsys Inc QS1134-840 Recessed Door Window Sensor

Product Description

The QOLSYS INC QS1134-840 is a wireless recessed door and window contact sensor designed for use in security and alarm systems. Installed flush within the door frame or window jamb, this sensor detects the open or close state of the protected entry point and communicates wirelessly to a compatible control panel. The recessed form factor keeps the sensor concealed from view, making it well suited for both residential and light commercial installations where aesthetics and tamper resistance matter. Security installers and alarm technicians are the primary trades working with this device.

The QS1134-840 is intended for use in wireless security system installations where door and window monitoring is required. The recessed mounting style fits into a drilled cavity in the frame, with the matching magnet installed in the door or window sash itself. This configuration is common in new construction and retrofit projects where surface-mount sensors are not preferred. It pairs with compatible QOLSYS IQ Panel systems and similar wireless security platforms.

Key Features

• Recessed form factor for concealed, flush installation in door frames and window jambs
• Wireless communication eliminates the need for wired runs to each opening
• Detects open and closed states for monitored doors and windows
• Compact design suitable for residential and light commercial applications
• Sold individually as a single unit

Compatibility

Designed as an OEM-style wireless recessed contact sensor for use with compatible wireless security and alarm control panels. Specific panel compatibility should be verified against QOLSYS INC system documentation prior to installation.

Installation Notes

Installation is typically performed by licensed security or alarm technicians following local codes and manufacturer guidelines. Power down or disarm the security system before adding or replacing sensors. A drill and appropriately sized hole saw or spade bit are required to create the recessed cavity in the frame and sash. Verify wireless signal range and panel enrollment procedures before completing the installation.