High Sensitivity: Accurately detects chlorine levels in solutions, ensuring precise monitoring and control. Color changes provide instant, easy-to-read results. Convenient Format: Each pack contains 10 compact books, each filled with high-quality test strips for convenience and portability. Perfect for on-site and field testing. Wide Range of Applications: Suitable for testing chlorine in drinking water, pools, aquariums, and industrial systems. Ideal for food safety checks, laboratory experiments, and environmental monitoring. Durable and Long-lasting: Made with premium materials to ensure consistent performance and durability. Shelf-stable for extended usability. Easy-to-Use Design: Simply dip the test strip into the sample and compare the resulting color with the provided chart for an accurate reading. No special training or equipment is required.