The Mopeka Check Wifi Bridge connects your Mopeka Check sensor to the cloud via your local WIFI router. Also works with Alexa and Google Home system voice commands. With the bridge, your tank level is continuously updated to the Mopeka cloud. The Mopeka app will then retrieve the tank level from the cloud if the sensor is not within range of your phone/tablet. So, you can check your tank level no matter where you are. Great for vacation homes, RV parks, and gas companies. Powered by USB-C cable & power cube (included).