Introducing the GRI 175-12-B 1/2" Recessed Switch Set, a reliable solution for your security needs. Perfectly crafted for hollow core doors and windows, this switch features a standard gap of up to 1", ensuring a seamless fit. Its design allows for extra wiring, making installation a breeze. The recessed magnetic contact installs securely in wood, vinyl, and aluminum, while the hermetically sealed construction guarantees durability. With 12" leads and the option for longer leads or jacketed cable, this switch is versatile and user-friendly. Upgrade your security system today with the GRI 175-12-B and enjoy peace of mind!