Used ADT wireless window or door switch for use with ADT home security systems. All are 100% functional but may have a bit of paint on them. Includes the transmitter, mounting base, magnetic switch and all mounting hardware. The item “ADT Door/Window Wireless Alarm Switch” is in sale since Saturday, July 25, 2015. This item is in the category “Home & Garden\Home Improvement\Home Security\Wireless Transmitters”. The seller is “nobbyv” and is located in Derry, New Hampshire. This item can be shipped to United States.