I am a bit confused about air quality and CO2 sensors.
First off all: what is is and where is it measured in?
My Withings Scale and Netatmo Weatherstation measure CO2 in PPM. Which is quite straightforward.
I have also a Dyson. Which reports the outside quality (AQI) in a scale from 1 to 11. And measures the inside quality (particles and VOS (= Dutch; Vluchtige Organische Stoffen) in a scale without any numbers (it uses good, average, bad, very bad).
What is Dyson really measuring?
Second: I want 2 sensors to measure quality
I really like 2 CO2 sensors, to measure the home office and bedroom for CO2. While working from home, I noticed that the living room CO2 is peaking. I want to monitor those rooms too.
Are there any good sensors? Or is an extra inside module for Netatmo the better option?
Also, are there sensors that also measure what my Dyson measures? Or is that not good information to know (other for Dyson to sell their air cleaners)?
Can anybody help or explain?