Kitagawa 740 Detector Tubes used with Air Sampling Pumps (0.01-0.20ppm)

Quantity of tubes/box: 10

Application: Indoor air pollutants

Gas to be measured: Nitrogen dioxide

Measuring range: 0.01-0.10 ppm/ 0.02-0.20 ppm

Sampling time: 200ml/min x 20 mins/ 200ml/min x 10 mins

Detectable limit: 0.002 ppm（at the sampling of 200mL/min×20min)

Shelf life: 2 year

Operating temperature: 0～40℃

Temperature compensation: Necessary（30～40℃）(See "TEMPERATURE CORRECTION TABLE")

Operating humidity: 5～90%R.H. at 20～40℃/ 20～90%R.H. at 0～20℃

Reading: Direct reading from the scale calibrated at the sampling of 200mL/min ×20min

Colour change: white →Reddish purple

Datasheet