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Measuring range: 4.2-84ppm/ 9.2-184ppm/ 20-400ppm/ 42-840ppm
Number of pump strokes: 4(400ml)/ 2(200ml)/ 1(100ml)/ 1/2(50ml）
Sampling time: 1.5 minutes/1 pump stroke
Detectable limit: 0.5ppm（4 pump strokes）
Shelf life: 1 year（Necessary to store in refrigerated conditions ; 0～10℃）
Operating temperature: 5～40℃
Temperature compensation: Necessary（See "TEMPERATURE CORRECTION TABLE"）
Reading: Direct reading from the scale calibrated by 1 pump stroke
Colour change: Yellow→Red
