Professional 6-in-1 TDS, TOC, COD, UV275, EC & Temperature
Professional 6-in-1 TDS, TOC, COD, UV275, EC & Temperature Meter, Accurate Reliable Water Analyzer, Digital Water Tester for Drinking Water, Hydroponics, Industrial Water, Aquariums, Tap WHY NEED COD & TOC? – TDS can only detect conductive substances in water, such as minerals and some other dissolved solids, but can not detect organic contamination and other harmful substances, so the simple TDS value can not be used as a standard to judge the quality of water quality. To ensure water quality, when we test the water quality, we should combine with COD and TOC water quality indicators to evaluate the water...