Insta-Chek pH Pencils

Full range: P-12M Insta-Chek™ 0-13 pH mechanical pencil (each pack contains 3 pencils and 2 color charts).

Measure the pH of any surface. Detects acidic or alkaline residues in 15 seconds. Fits in your pocket, use it anywhere.

The Insta-Chek™ 0-13 pH Mechanical Pencil has 0-13 pH readings with fourteen bright, easy-to-read color changes.

It will measure the pH of the surface of any solid to the nearest pH value. This mechanical pH pencil has a strong, thick wax base for bold pH testing. Writes on almost any surface.