PH test strips, for measuring the acidity of liquids

These strips allow you to measure the acidity of, for example, your urine.

Please note: the price of the different strips does not necessarily correlate with their quality. In most cases, the strips originate from a pharmaceutical company and are offered here by another brand (such as Alka Vitae or Holisan). The strips are all equally accurate. Some strips have a wider range, but for measuring urine, this is generally not relevant. See also: Deacidifying