Hello Mio!
I can see that you are using a custom decoder in Chirpstack. This is indeed possible but in most cases it is not necessary since the decoding for this sensor is done automatically in IoT Open. When a custom decoder is used it overrides the built in decoder and need to output the data as floats and not as string, objects, boolean or any other datatype.
I suggest you remove the decoder in Chirpstack.
If you added the decoder because it did not work without it, then please let us know. You can post your experience here.
/Marcus
