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Measuring range: 70-500ppm/ 35-250ppm/ 33-167ppm
Number of pump strokes: 2(200ml)/ 3(300ml)/ 4(400ml）
Sampling time: 3 minutes/2 pump strokes
Detectable limit: 20 ppm(400ml）
Shelf life: 2 years（Necessary to store in refrigerated conditions ; 0～10℃）
Operating temperature: 10～40℃
Temperature compensation: Necessary（See "TEMPERATURE CORRECTION TABLE"）
Reading: Direct reading from the scale calibrated by 2 pump strokes
Colour change: White→Yellowish orange
