Instruction:
1.Simply press the testing strip to the object or liquid you are testing. Half second later, take out the
paper and using the color chart included, compare the color change of the paper to find out the acidity
level of your testing subject.
2.Can not indicate the Acid or alkali solution when its density was lower than 0.01%.
3.Keep dry for the rest paper
Package include:
1 set of 80 Strips pH test paper