Specification:

1 - 3 indicates a very acidic substance 

4 - 6 indicates an acidic substance 

7 indicates neutral 

8 - 11 indicates alkalinity 

12 - 14 indicates a very high level of alkalinity

Paper Size:app 45mm x 7mm (L x W)

Instruction:

*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.

*Can not indicate the Acid or alkali solution when its density was lower than 0.01%.

*Keep dry for the rest paper

Package list:

1* ph test  strips

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

We only ship to confirmed ebay Order addresses. Please comfirm that your Order address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. 

It takes about 7-15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.