The Honeywell FG-730 is a Glassbreak Detector that uses signal verification, filtering, and Flex-Audio technology to ensure optimal area protection while ignoring common causes of false alarms.The unit can detect broken glass from up to 30 feet away and includes advanced circuit protection. The unit should be mounted within 30 feet of the window being protected and is easy to install. Also known as -Honeywell Intellisense FG-730 Dual Flex-Guard Audio Glass-Break Detector