... 100%. Equipped with a reliable and extended-life sensor. High Purity Oxygen AnalyzerFeatures:•New pattern, long-life, conversion ion current ... the measurement range;Industries Served:It can be used in high purity oxygen production, metallurgy, health, petrochemicals, and power electronics ... % Repeatability: Cv≤0.5% Preheating time: 300s Sample gas flow speed: 150~300ml/min Stability: zero drift ≤0.5% ...