The dimensions of the Honeywell SiXCT encrypted door/window sensor are 1" H X 3.13"L X 1.61" W. If you are looking for the depth of the SiXCT it is listed above at 1.10".

The Honeywell SiXCT cannot be flush mounted. It can only be mounted flush with the surface its being installed on. SiXCT should also be surface mounted on the supplied mounting bracket included in the original packaging.

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