Technical parameters: Sensitivity: 1900 ± 600 nA/ppm Typical baseline range (pure air): 0-3 ppm ETO equivalent T90 time: < 120 seconds Range: 0-20 ppm Overload: 100 ppm Environment Operating temperature range: -20 to + 50 ° Pressure range: 800-1200mbar Humidity range: 15% -90% RH Life: Expected working life: > 24 months Warranty period: 12 months