功能

• After immersing the test paper in the target liquid for a moment, check the pH value by comparing it with the standard color of the case.
• Convenient test paper for quick and easy measurement of pH value of liquid.
• This is a cost-effective product that can be d in many situations at an affordable price.
• It can be d to measure not only pH values of liquids but also various forms of solid surfaces, gases, etc.
• Store away from high temperatures, high humidity, and direct sunlight.