What will happen if I move my plug away from the sensor(s), but still within wifi range?

If the plug is out of Bluetooth range, it will not be able to communicate with the sensors and you will not receive your energy data. 

The plug talks to the sensors using Bluetooth, so please make sure the plug and the sensors are within Bluetooth range. A common rule of thumb is 10 meters or 2 rooms apart.

If you have multiple plugs, only one of them must be within this range.