hmmm this is strange, apparently the temperature sensor is affected by something else 
They are all connected via i2c, and while for the CO2 sensor i implemented quite some testing to filter out bad results, for the temerature sensors i haven't i will look into this as well
What would help is:
1. with the power supply with the %CO2% - can you measure the output voltage. Seems like the sensor does not like voltages outside the USB spec (>5.25), and in fact i have at least one USB battery that outputs 5.40, and my original Samsung S4 charger gives ~5.28-5.35
2. if you have a scope - you can also try to measure the power quality of the bad power supplies, another one that i had (1$ chineese one) had an almost triangular output which jumps between 4.7 and 5.2 V
Thanks!
They are all connected via i2c, and while for the CO2 sensor i implemented quite some testing to filter out bad results, for the temerature sensors i haven't i will look into this as well
What would help is:
1. with the power supply with the %CO2% - can you measure the output voltage. Seems like the sensor does not like voltages outside the USB spec (>5.25), and in fact i have at least one USB battery that outputs 5.40, and my original Samsung S4 charger gives ~5.28-5.35
2. if you have a scope - you can also try to measure the power quality of the bad power supplies, another one that i had (1$ chineese one) had an almost triangular output which jumps between 4.7 and 5.2 V
Thanks!