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Quantity of tubes/box: 10
Application: For art galleries and museums
Gas to be measured: Ammonia
Measuring range: 1-12μg/m3
Sampling time: 24000ml（400ml/min×60min）
Shelf life: 2 years
Operating temperature: 10～40℃
Reading: Direct reading from the scale calibrated at the sampling of 400ml×60min
Colour change: Pale purple→Pale yellow
