原產國：美國

品牌：ITS

檢測範圍：0, 0.05, 0.1, 0.2, 0.3, 0.4, > 0.5 ppm (mg/L)
檢測顯色時間：30秒

包裝：50條/瓶

Dip one test strip into a 50mL or larger water sample with constant, gentle back-and-forth motion for 10 seconds. Remove the strip, shake once, briskly, to remove excess water and wait 20 seconds. Then, view through the aperture to match with the closest color. The simple dip-and-read procedure makes testing easy, as no technical experience is required to run the test.