pH & Litmus Test Papers

pH and litmus paper are chemically treated test strips that change colour on contact with a liquid, giving an instant read on acidity or alkalinity without any meter or calibration. Litmus paper gives a simple acid or base result, while universal pH indicator paper shows a graded colour change you match against a chart for an approximate pH value.

SmartLabs stocks litmus paper and pH test strips in South Africa across booklets, bottled strips, and continuous roll dispensers with a built-in colour chart, suited to schools, laboratories, and field testing. Whether you need a quick acid-base check for a classroom demonstration or repeated pH readings on water and soil samples, this range covers fast, low-cost indicator testing for any bench or field kit.