Application Range
Standard Measuring Range: 5 to 100 / 2 to 50 ppm
Number of Strokes n: 5/ 10
Time for Measurement: approx. 1 min / approx. 2 min
Standard : ± 10 to 15 %
Color Change: yellow green -> blue grey
Ambient Operating Conditions
Temperature: 10 to 40 °C
Absolute Humidity: max 30 mg H2O / L
Reaction Principle
NO2 + diphenylbenzidine -> blue grey reaction product
Cross Sensitivity
Within their TLV, ozone or chlorine do not interfere with the reading. Higherconcentrations are indicated, however with differing sensitivity period. Nitrogen monoxide is not indicated.
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