Digging some deeper in de code showed me that Custom Sensor is mapped on Percentage graph
The same holds for Waterflow.

Vincent

I am using json to retrieve historical data from the different sensors using: <my-ip>:8080/json.htm?type=graph&sensor=<sensortype>&idx=<my-idx>&range=<my range> This works fine for sensorstypes such as temp ,wind, counter and Percentage I can't however find the correct sensortype for devices of type ...