PÃœRATest TDS Drinking Water Quality Tester Pen / Digital Water Filtration and Purification Meter

The PURAtest TDS Meter is a professional level water test meter that fits in your pocket! TDS testing is a great tool for drinking water, water filtration and purification, hydroponics (test your nutrients), aquariums, RO/DI systems, pools and spas, and more. A TDS meter typically displays the TDS in parts per million (PPM). For example, a TDS reading of 1 ppm would indicate there is 1 milligram of dissolved solids in each kilogram of water and 0 ppm being pure H2O. A TDS Meter indicates the Total Dissolved Solids (TDS) of a solution, i.e. the concentration of dissolved solids in it. Since dissolved ionized solids such as salts and minerals increase the conductivity of a solution, a TDS meter measures the conductivity of the solution and estimates the TDS from that. Specifications: Range:0.00-14.00 ph. Big screen display. Accuracy:+/-0.05 ph. Manual calibration. Resolution:0.01ph. 6.2*1.5V (357A button cell ). ATC : 0--80℃. Dimensions: 6.1"x 1.2"x 0.6" in". Package includes: 1 x TDS Meter, 2 x Button batteries, 1 x Carrying case, 1x Manual. Battery life: approx. 1000 hrs.