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Measuring range: 20-250 ppm
Number of pump strokes 1(100mL)
Sampling time: 1 minute/1 pump stroke
Detectable limit: 2 ppm
Shelf life: 1 year (Necessary to store in refrigerated conditions; 0～10℃)
Operating temperature: 5～45℃
Reading: Direct reading from the scale calibrated by 1 pump stroke
Colour change: White→Yellow
