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TDS Tester Meter for Water Quality Testing, 3-in-1 (TDS,EC,Temperature), 0-9990 ppm + Digital pH Meter and Tester 0-14 pH 40%OFF How to use Remove the electrode protection cap. Press the ON/OFF key, place the electrode into the solution to be tested; After the value is stable, press the HOLD button to take out and reading; After finished, press the ON/OFF key, wipe the electrode clean, and insert the electrode protection Cover. 0-50 ppm --------- High Purity Water 50-100 ppm ------- Pure Water 100-300 ppm ------ General Pure Water 300-600 ppm ------ Fouling 600-1000 ppm ----- Poor Taste Water,Fouling Above 1000 ppm --- The water is not suitable for drinking Description: 1.Display Type:Digital 2.Range:0-9990ppm 3.Accuracy:+/- 2% 4.Battery:2*1.5v(button cell). 5.Size:approx 15.5*3.1*2.3cm 6.Color:as picture shown Package includes: 1 pc TDS tester
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