Welcome to our store! What did you get? You will receive 2 pack of decisive test paper, each measuring 5 meters, which is sufficient for your daily testing and can be used for a long time. Quick test: The color of the pH test strip will change within a few seconds after contact with the test liquid. Remove the test paper and compare the results with the color chart to quickly obtain the pH value. Widely used: The test strip can be widely used in homes, offices, work, and teaching. It is very suitable for testing water, soil, food, and other substances that require daily testing. Health monitoring: The pH test strip can detect the pH value of the internal environment and track pH changes throughout the entire testing process to help you maintain health. Easy to carry: Each pack of reaction strips is lightweight, portable, and easy to carry anywhere, making it perfect for outdoor use. 100% satisfaction: Our customers are our top priority. If you find any product issues after receiving the goods, such as damage and incorrect quantity, please contact the seller immediately. We will do our best to provide you with satisfactory after-sales service.