Skip to main content
. 2021 May 26;11:11003. doi: 10.1038/s41598-021-90532-9

Table 2.

Basis information of gas analyzer TESTO 350.

Component Method Range Accuracy Resolution
CO2 IR sensor 0–25 vol.% ± 0.3 vol.% 0.01 vol.%
O2 Electrochemical sensor 0–25 vol.% ± 0.2 vol.% 0.01 vol.%
SO2 Electrochemical sensor 0 ~ +5000 ± 5% of measured value 1 ppmv
NO Electrochemical sensor 0 ~ +4000 ppmv ± 5% of measured value 1 ppmv
NO2 Electrochemical sensor 0 ~ +500 ppmv ± 5% of measured value 0.1 ppmv