Máy đo màu của nước HANNA HI 727 (0 to 500 PCU) Features at-a-glance: Easier to use and more accurate than chemical test kits Dedicated to a single parameter Small size, big convenience Ideal for: Water Quality, Environmental, Education Specifications: Range 0 to 500 PCU Resolution 5 PCU Accuracy @ 25°C/77°F ±10 PCU ±5% […]