Convenient and practical device with 1 calibration point, easy to use and highly accurate Measuring range: -1999 ~ 1999 mV in 1 mV steps Easily find out the type of water you are drinking and how effective and efficient your filter works Carry-anywhere design, determine the indicators of water quality with this in a few minutes. Best for domestic laboratory and industrial use (drinking water test, in aquariums, artificial basins, waste water), swimming pools, water treatment plants, aquaculture, spa, etc.
