There are two things to consider when this occurs:
1) Check that you have the right flow meter installed and selected via the flow meter setup on the software. If you have a 3/4" but selected 1", the reading can appear up to 10x higher than it should be.
2) Carefully follow the instructions in our wiring guide.
Ensure that the common wire is connected to the sensor common and not the common for the valve, as this will cause massive spikes in readings. DO NOT USE THE RED WIRE.
For a more detailed look at our flow meter installation guide, click here.