The Glass Break Detector from 2GIG Technologies features a 15 foot maximum detection range with a 360° sensing angle field of view when ceiling mounted and 180° when wall mounted. The device is fully supervised by the 2GIG Go!Control Panel (service plan available for remote monitoring) and will transmit a wireless RF signal to the panel from up to 300 feet away, in open air, when it hears the sound of glass breaking. LED lights on the detector's face provide a visual indicator of broken glass, power and if in test mode. The detector is tamper protected and made of lightweight plastic (5.1oz) making it easy to mount near any window you wish to protect. This product includes a 2 year manufacturer warranty and is powered by two CR123A (included) batteries.