pH Pencil, 0 - 13
- The Hydrion Mechanical pH Pencil measures the pH of any surface to the nearest full pH value
- The Hydrion pH pencil can be used to test irregular or uneven surfaces
- Is also effective on porous material and impervious solids
- The pH Pencil is used to detect acid or alkali residues
- It offers clear bright single color matches at every 1.0 interval from pH 0.0-13.0. 3 Pencils and 3 Color Charts included.