Application Range
Standard Measuring Range: 0.25 to 3 ppm
Number of Strokes (n): 10
Time for Measurement approx. 1 min
Standard Deviation ±10 to 15 %
Color Change yellow -› blue
Ambient Operating Conditions
Temperature: 10 to 50 °C
Absolute Humidity: <20 mg H2O / L
Reaction Principle
NH3+ pH indicator ä blue reaction product
Cross Sensitivity
Other basic substances such as e.g. organic amines are indicated
as well, but with different sensitivity.