The new FG1625SN Glassbreak Detector uses the latest technology to provide faster response and increased false alarm immunity. The FG1625SN is specifically designed to allow a fast, easy installation by utilizing V-Plex® polling loop technology. Four adjustable sensitivity settings can compensate for the acoustics of any room. Optimum operation can be quickly verified using the FG-701 Glassbreak Simulator. This device is designed for use only with controls supporting V-Plex (polling loop) technology.