Note:
Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Operation Steps:
1.Take off the protective sleeve
2.Clean the Electrode with distilled water and wipe clean the spare water.
3.Press the "ON/OFF" button .Switch on the power.
4.Put the PH meter in the solution .Make sure the electrode immersed in the solution.
5. Lightly shake the meter, read the data when the numeric stabilized.The temperate displays at the bottom of the screen .
6. Press the "ON/OFF" button to shut off the instrument .

Calibration:
Automatic Calibration
1.EC：Three points calibration optional
-----------(1413uS/cm 12.88mS/cm 111.8mS/cm)
2.pH:Recognize standard solution automaticly
-----------(6.86 / 4.00 / 9.18)
-----------If the meter can't identify the solution,the electrode is broken