ITEM NAME:Digital TDS Tester Drinking Water Quality Test Pen Hydroponic Water Monitor #gib Store Home Promotion Hot Item Add to Fav.TDS range: 0-9990ppm/mg/L. Great for water filters, food (vegetable, fruits) and drink quality monitoring, pools and spas, aquariums, hydroponics, etc. Used to test the quality of various water. LCD digital display, easy to read.
