Using Wireless Sensors on Metal Doors

Wireless door sensor operation can be adversely affected when affixed to a metal door or window frame. Prior to mounting the unit, the sensor may operate flawlessly. But once applied to the metal surface, there may be little, if any, detected signal at the controller / receiver.

In most instances, the problem can be resolved by simply adjusting the orientation of the sensor. Rather than applying the device with its back-side contacting the door frame, rotate the unit 90 degrees (along the vertical axis) for side-mounting.

To affix the device in this modified orientation, a custom attachment is recommended. A plastic cable-tie mount works well for this purpose. Apply cable-tie mount to the sensor as shown, securing with a zip tie. Ensure that the orientation allows for proper detection of the external magnet. (The magnetic sensing side should face outward, away from the mount.)

A single sensor-mount is sufficient for smaller sensors such as the GEN3 mini. For larger devices including the GEN3 basic sensor, dual mounts are recommended.

Before permanently attaching to the wall or frame, perform sensor registration (i.e., pairing) at the HSRS controller. (Refer to your installation mini-guide for details.) Test each sensor for proper signal reception at the controller.

Peel away the adhesive backing and press firmly against the door or window frame. (See note #1 below.) For best results, hold in place for one minute while applying firm/steady pressure.

Notes:

1. Be sure to test the sensor for proper operation before affixing to the intended surface.
2. For smaller sensors, a single cable-tie mount is sufficient. For larger devices, dual mounts are recommended.