Ph Paper Wide Rang Vial With 11 Additional Color Indicator Cards.

TThe wide range test paper has a range of 1 to 14. It allows you to test the acidity or alkalinity of a solution with more accuracy than the pass/fail nature of red and blue litmus paper. The wide range test paper is provided with a color indicator card. The kit includes 12 indicator cards and there are 100 strips of test paper per kit. Each of the strips of wide range test paper are 1/8 inches wide by 1-5/8 inches long.