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Measuring range: 50-1,200ppm/ 20-480ppm
Number of pump strokes: 1(100ml)/ 2(200ml)
Sampling time: 1.5 minutes/ 1 pump stroke
Detectable limit: 5ppm (200ml）
Shelf life: 2 years
Operating temperature: 10～40℃
Reading: Direct reading from the scale calibrated by 1 pump strokes
Colour change: Yellow→Pale blue
