Posts: 5.411
Threads: 336
Joined: Apr 2014
Weather Station: WeatherDuino 4Pro
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Probably isn't store the culprit. Postal services in Europe are increasing shipping cost like crazy, they are hungry to profit with the increase of online shopping. However, when the shipping cost comes near or surpass the price of the product, usually that stops the buyer from purchase.
When are they (or better, the EU governments) going to learn from the Chinese?
By the way, currently I'm running an MH-Z19 model B side by side with a Sensirion SCD30 (considerably more expensive) and the results are practically the same. Both are outdoors.
Its important to say, that those sensors are intended (as manufactures say) to measure CO2 indoors. Precise outdoor CO2 measurement its a complicated matter, far from the capability of these devices.
Rgs.