CO2 Gas Sensor

Measures carbon dioxide concentration, the single most useful indicator of whether a room's ventilation is adequate. CO2 rises predictably with occupancy, and levels above roughly 1000 ppm correlate with drowsiness and reduced concentration — which is why schools and offices increasingly monitor it. Used for demand-controlled ventilation, classroom monitoring and greenhouse enrichment control. The clearest single indicator of ventilation adequacy; Directly relevant to classroom and office comfort; Suits demand-controlled ventilation systems; Also used for greenhouse CO2 enrichment