Low price portable pockets size aquarium led pen type water quality tester PH meter price

Feature

♦Small size,portable

♦Economical

♦High accuracy,no need any other auxiliary instruments.

1.Remove the protective cap.

2.Fist clean the electrode with distilled water,and wipe it with filter paper.

3.Turn on ph meter by on-off switch located on the top of battery case.

4.Immerse the ph meter electrode in solution up to the immersion level. Under no circumstances immerse above display level.

5.Stir gently and wait for the reading to stabilize.

6.After use, switch off it, use the distilled water clean the electrode and replace the protective cap.