Wi-Fi Operated. Connect Shelly Flood to your Wi-Fi network. No HUB required!. Temperature sensor. Be aware of temperature fluctuations and keep your floor heating at the desired temperature. Long battery life. Feel more comfortable with Shelly Floods long-lasting battery life of up to 18 months. Wire-free. Place the sensor anywhere in your home where flooding may occur. Immediate notifications. You will receive a notification immediately if Shelly Flood detects any liquid. Scene activation. Set Shelly Flood to activate various scenes based on given conditions.