pH Test Strips are an easy & economical way of measuring the PH of a wide variety of substances. Conveniently packed in flip-top vials, these premium quality, wide-range plastic strips offer clear, bright single color matches at every 0.5 interval from pH 0.0-6.0. Each pack contains 100 plastic strips
pH Litmus Paper pH 6.5 - 13.0 is a short-range general use pH Hydrion Litmus paper for measuring the pH of liquids. Each roll will give the user approximately 100 tests. 6mm (1/4in) wide x 4.5 metres (15ft). Comes complete with colour chart and directions.