±0.4 PH Authoritative LCD Digital PH Pen Water quality Tester Pocket ph meter benchtop
±0.4 PH Authoritative LCD Digital PH Pen Water quality Tester Pocket ph meter benchtop
1.Remove protective cap.
2.First rinse the electrode with distilled water and suck it with filter paper.
3.Turn the meter on by pressing “ON/OFF” key.
4.Immerse the pH meter electrode in the solution to be tested (should not be over the immersion line).
5.Stir gently and wait around 30 seconds till the reading stabilizes.
6.After finishing, clear the electrode with pure water, turn the meter off by pressing “ON/OFF” key.
7.Always replace the protective cap after use.
