Easy CO2 Meter with ESP8266 (NodeMCU) and Senseair S8 sensor 2 November, 202322 January, 2021 by Mariete Why mount a CO2 meter with another sensor when you have this one?
A home CO2 meter with Wifi against the coronavirus: The CO2 Easy 22 November, 2020 by Mariete Easily build your own quality CO2 meter in an afternoon