Device sends %CO2% instead of the actual value

[admin]

Thanks for the comprehensive testing!
I just got back from vacation and now i will also give it a try with the different power supplies.

for the readings 1047 / 533, i will have a look again in the firwmare. In general there is a part that averages the last two readings.
And in case some error during reading appears there is a -1 internal value. It should not get into the averaging part, but maybe there is some way it happens