Box of 10 units!
The Vivint VS-DW2100-345 (also known as the DW21R) is a wireless, recessed door and window contact sensor designed for Vivint smart home security systems. It operates at 345 MHz and is installed completely inside the door frame for a discreet, invisible profile.
The sensor triggers an alarm when the distance between the recessed sensor and its paired magnet is separated by an opened door or window.
Key Specifications
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