pH sticks in plastic boxes with 100 pcs. with colour scale.
Some sticks can be analysed in a reflectometer QUANTOFIX® Relax
For fast determination of pH in solvents.
Some covers the entire pH scale, while other types gives a more precise measurement of the pH value.
Dip a stick in the liquid for a few seconds and subsequently compare to the provided colour scale.
Cross references for test papers with suggested alternatives.