20 pcs PH Meters PH Test Strips Indicator Test Strips 1-14 Paper Litmus Tester/Brand New Measurement & Analysis Instruments

What is the pH？

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)

Weigh:app 3g

About the function of test paper

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

Scope of use of test paper

Packing List

1 box ph paper

FAQ

How many test papers are there in a box？

A: 1 box=20 pcs
1 pcs=80 strips
so 1 box total 1600 strips

How long is the shelf life of test paper？

in 1-2 years

Multiple Colors Available

Brand Story

YIERYI brand was registered in 2016. The main products are refractometers, PH meters, tds, ec pens, soil meters, kitchen scales, and jewelry scales. In order to ensure the accuracy of the data, we gave up the low-cost chip, selected high-precision Taiwan imported and South Korea imported chips, the design chose a portable pen-type design, light, beautiful, and easy to carry. All products will be tested, calibrated and used by ourselves to ensure that the quality is qualified and then promoted. We want to let this healthy brand enter every family and every corner of the world, and pass on the dream of “world love, China made”!