ALKISTA

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...