WAYNE WTXS AdvanTEXT Cellular Flood Monitoring Alert System With Dual Float The Advantest is powered by Verizon wireless. Homeowner pays low monthly service fee for texting service Sends text alerts for ac power outage and power restored Sends text alerts for high water conditions and normal water level restored Battery back-up(4 aa batteries, not included) to allow continued text notification during power outage No internet, Wi-Fi, or land line telephone connection required The AdvanTEXT is powered by Verizon Wireless. Homeowner pays low monthly service fee for texting service Sends text alerts for AC power outage and power restored Sends text alerts for high water conditions and normal water level restored Battery back-up(4 AA batteries, not included) to allow continued text notification during power outage No internet, wifi, or land line telephone connection required