NEMA 1, indoor rated 120 volt operation with 9-volt battery backup 86 dB audible alarm Super bright red LED alarm ring Green power on LED Low battery LED Low battery warning Automatic reset WiFi LED. Silence or test alarm manually or through your smart device. Two switch styles available – wide angle float or compact snap-on float (fits 1-1/4" and 1-1/2" pipe) (snap-on float not recommended for sewage applications). Auxiliary contacts for connection to other home security systems. Device will run up to 12 hours on 9-volt battery with alarm active, up to 7 days in standby mode