Do you use it with a S0PCM? The inaccuracy may come from there, i have seen complaints before on this forum about the inaccuracy of the S0PCM. Maybe some parts can be added between the sensor & S0PCM to prevent 'noise' or something on the cables. Yes I'm using a S0PCM. Not sure what you mean by ...

I'm using a Aquadis+ water meter and the Itron cyble sensor for a couple of weeks now and noticed that is pretty inaccurate. It is off by approximately 50 liters a day (more liters visible in Domoticz than actually used on the water meter). Anyone noticed the same behavior?