The alarm panel is equipped with audible and visual alarm indication activated by the float switch connected to the terminal block. A variety of sensors can be used such as a float switch, pressure switch or any "dry" type sensor that "closes" during an alarm condition (normally open or normally closed). Installing a 9VDC battery (not included) provides battery backup during power outages. Use the auxiliary contacts to connect to building automation systems (BAS) and phone dialers. Multiple sensors (signaling device) can be connected for expanded monitoring.