pH test strips provide precise pH values as the different colours do not mix at the point of testing.
Even small pH changes down to 0.2 pH can be observed in a clear colour change.
pH indicator is chemically bounded to the cellulose fiber and provides a non-bleed system which ensures precise pH values.
Strips protect the user's finger from the test solution as the test pads are at the extreme end of the strip.
Colour chart on the box backside has an easy to read different colour chart.
Colour chart for each pH value ensures fast and reliable pH readings.