Litmus pH Test Strips, Universal Indicator Paper, 80/160/400 strips

pH range: 1-14

Recommended for testing pH levels in various solutions, including water, cosmetics, soil, and food and diet.

• Paper Size: 54mm x 9mm (L x W), Comes in single pack of 80 strips
• The test strip color changes must be matched with the pH scale color chart within about 15 seconds
• Neutral when the PH value is equal to 7；acidity when the PH value is less than 7；Alkaline when PH value is greater than 7
• Use range: PH test, amniotic fluid test, water quality test, cosmetics test, soil test, fruit test, etc.