The 2GIG Glass Break Detector 433 MHz is a fully‐supervised, tamper‐protected, ceiling‐ or wall‐mounted unit. The detector provides a 15 ft (4.6 m) maximum detection range, 360° maximum horizontal sensing angle, It can distinguish the sound of breaking glass from other common sounds found in homes and businesses. It can be used to protect area with a lot of glass for example large windows sliding doors, balconies etc.