My questions are: - what technology/tools was used to measure CO2 level in the air? - was it accompanied by technology to measure O2 (oxygen) level too? - how was the measured level of CO2 displayed - are there any photos of actual dials/scales? I play submarine simulator games, recently started modding them, as far as my poor computer skills allow me. All the games I know get the "CO2
Forum: Technology and Operations