A 2GIG wireless recessed door contact can be installed in the door.
The door contact can be installed and covertly concealed as it is not when the door is closed. Serves the same purpose as the wireless door contact. The only difference is the installation is concealed.
Not to be installed on metal doors. Need to be drill into door leaf and door frame. some skill required. Not recommended for a rental property if make good is required. Comaptible with 2GIG only.
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