Industrial Multi Infrared Gas Detector Runlai S150 High Accuracy Gas Analyzer, Customizable Sensor Configuration and Sound Alarm for CH4, CO, CO2, SF6, SO2, CnHm, NH3 Gas Monitoring Measurement principle: NDIR principle (non-dispersive infrared);Measurement range: (Select the component to be detected and the range at the time of ordering) Parameter Value Accuracy ≤±2%F.S Resolution 0.01% Repeatability ≤±1%F.S Stability Zero drift ≤±1%F.S/7dRange drift ≤±1%F.S/7d Response time