[werk_ag]

Here it is, a side by side comparison, updated every 15 minutes.

Equipment:
Two WeatherDuino Air Quality Monitor III

Unit 1:
Dust Sensor: Sensirion SPS30
CO2 Sensor: Sensirion SCD30

Unit 2:
Dust Sensor: PMS7003
CO2 Sensor: MH-Z19 (model B)

https://thingspeak.com/channels/317451



Note:

From SCD30 datasheet:

When activated for the first time a period of minimum 7 days is needed so that the algorithm can find its initial parameter set for ASC.

The SCD30 sensor in test hasn't completed this 7 days period yet.