o 측정범위 - O2 (E.C) : 0-25.0% - CO (E.C) : 0 - 10,000 ppm - NO (E.C) : 0 - 5,000 ppm - NO2 (E.C) : 0 - 1,000 ppm - SO2 (E.C) : 0 - 5,000ppm - H2 (E.C) : 0 - 2.00% - CO NDIR : 0 - 10% - CO2 NDIR : 0 - 20.0% - CO2 NDIR : 0 - 20.0% - CxHy NDIR : 0 - 5%