Dumond's pH Test Kit is designed for quick and easy full range pH testing. Each pH Test Strip is made of premium grade litmus paper for universal applications. These pH paper strips have a distinct color match at each full pH unit, making it easier for the end-user to identify the pH level. This accurate pH Test Kit can be used for a variety of applications, including food services, industrial testing, safety testing, emergency testing, agricultural testing, classroom demonstrations, hospitals and general laboratories. Each package Includes fifteen (15) 2” pH Test Strips and color chart. Since 1981 Dumond has developed and manufactured best in class paint removers, encapsulates, graffiti removers, neutralizers, pH test strips, cleaners and innovative DIY and professional products. Satisfaction guaranteed