Among the smallest wireless door/ window contact currently available, the wafer-thin profile of the EVDW4975 provides a streamlined, practically non-existent look once installed. The contact can be easily mounted to a window frame with double-sided tape, eliminating the need for drilling. This not only reduces installation times but also retains the integrity of window warranties. A generous magnet gap of 5/8" (16 mm) easily accommodates larger door or window frames. The EV-DW4975 is built with reliable 433 MHz technology and is compatible with all current DSC wireless receivers.