... 0-100%. Equipped with a reliable and extended-life sensor. High Purity Oxygen AnalyzerFeatures:•New pattern, long-life, conversion ion current tester ... the measurement range;Industries Served:It can be used in high purity oxygen production, metallurgy, health, petrochemicals, and power electronics ... :Measure rangeTested gas pressureGas composition and impurity BROTIE High Purity Oxygen Analyzer