A: If your instrument Serial Number is prior to 10000, the range is 0-200ppm. If your instrument Serial Number is 10000 or higher, then the range is 0-500 ppm
A: A GEM™2000 Plus has built-in analyzers for H2S and CO. The GEM™2000 requires external gas pods to monitor these gases.
A: About 2-3 hours.