the conventional measuring range of the four-in-one gas detector is as follows:

in general, the conventional measuring range of the four-in-one gas detector is as follows: 0-1ppm, 5ppm, 10ppm, 20ppm, 50ppm, 100ppm, 200ppm, 500ppm, 1000ppm, 2000ppm, 5000ppm, 10000ppm, 50000ppm, 100%Lel 0-2% Vol, 5% Vol, 10% Vol, 30% Vol optional. Conventional oxygen selection 0-30% VOL, hydrogen sulfide selection 0-100PPM, carbon monoxide selection 0-1000PPM , combustible choice 0-100% LEL.

the resolutions corresponding to different measuring ranges are also different. the resolutions we often encounter are generally,. 01 ppm or 0.001ppm(0 ~ 1ppm);0.01ppm(0 ~ 100ppm);0.1ppm(0 ~ 999ppm);1ppm(1000ppm and above); 0.1%Vol(0 to 100%Vol) or 0.01%Vol(0 to 100%Vol);0.1% Lel(0 to 100% Lel). At present, the detection range of Yiyuntian's MS600 portable four-in-one gas detector is CO(0 ~ 1000ppm), H2S(0 ~ 100ppm), O2(0 ~ 30% Vol), Ex(0~100 LEL). Other ranges can be customized and you can choose according to your own needs.