Since the 90s I'm a fan of weather stations and have long experience. Netatmo, it's really different from anything I have experienced! My appreciation of 5 stars only confirms the trend of very positive quotation! I may repeat what has already been said by other users and I rather dwell on the CO2 measurement. This CO2 measuring system is very sensitive and is therefore able to fluctuate rapidly at a speed that impresses. As soon as an additional person enters the room the graph goes up ... As soon as one opens a window down the chart! Awesome! But I wanted to do more than what other users have noted. Does the measure is ultimately reliable? I wanted to reassure me that the measures comply ==> For example: A thermometer immersed in boiling water that measures 93 ° Celcius is unreliable and all measuring ranges must be consistent! So I also got myself a CO2 meter (only) a professional brand in the measurement which I will not mention the name. I had a lot of satisfaction when I put the two devices next to one another - that of the other brand Netatmo - to find that the measures were very close, a few units are negligible because there is always a small inaccuracy announced by the manufacturers. So the CO2 measuring Netatmo is quite reliable! Also great thing to mention: The world map with all Netatmo users and can zoom in on the area of their choice. Thus, you get an impressive amount of action in a region, much more than that offered by some official weather stations in a country or region.
