Krowne Metal S25-124 Test Strips are designed for accurate measurement of Quaternary Ammonium Chloride (QAC) sanitizer solutions. Each bottle contains 100 strips, providing a reliable and convenient way to ensure proper sanitation levels. The color-coded chart allows for easy interpretation of results, with a test range of 0-500 ppm. These loose strips are ideal for quick and efficient testing in various settings, ensuring compliance with health and safety standards.