Matt
A quick question.
Have you read the product Wiki for the Gravity analog to current converter. It appears the output is from 0.48V (4mA) to 2.4V (20mA) as per this graph
There is also a small Arduino sketch which should check the correct operation.
Have you run this or measured the actual voltage at this point ??? It might help to establish where the problem might lie. Although from your posts so far it does point to power supply but you never know.
Cheers Bob
Yes, this is what I followed. It’s quite easy, incl the example sketch they supply.
I’ve got the running median filter working with mqtt & HomeAssistant. There has been no fluctuations in the level reading for the last 2 hours. I’ve now started to install conduit etc to get this project out to the rainwater tank and doing what it’s designed to do.
Many thanks for all your help. Yes, I may not have done it the same way as you, but that’s ok. So are the bandaids.