GRI M-110

The GRI M-110 is a surface-mount magnet that measures 1.5"L x 5/16"W x 3/8"D. It is used with a larger surface-mount contact sensor. The magnet should go on the moving part of the door or window, and it should be properly aligned with the sensor. You should remember to test after installing.

Like any surface-mount magnet, the GRI M-110 must be properly aligned with the sensor. There will usually be some indentation or marking on the sensor to let you know which side should be facing the magnet. Proper alignment will ensure that the sensor's internal reed switch remains closed when the door or window is shut. Once you open the door or window, the magnet will separate from the sensor. This will release the metal reed switch inside the sensor and tell the sensor to alert the system.

The GRI M-110 is a rather large magnet, measuring 1.5" in length. It should be used with a contact sensor of a similar length. Remember that the sensor is usually as large or larger than the magnet. This will allow for an aesthetically pleasing installation. Always test the sensor and magnet combination after installing to ensure that the system recognizes when the door or window is opened or closed.

Note: This surface-mount contact is available in white (GI-M110W) and brown (GI-M110B).