3 Review(s)

The sales package includes yellow 40 strips, red 40 strips & Blue 40 strips. These strips are used for testing acid/base/neutral. The ph range varies from 0-14 pH. The ph paper is used for checking alkaline water. The litmus paper is used to check ph of soil, saliva, water, fish farming, hydroponics, cosmetic testing, fruit & vegetable detection, urine examination, amniotic fluid test, etc.