Features: 1. Simple operation, it supports quick test, adopts convenient colorimetric method, compares the test rod with the color chart of the bottle body, and the value can be obtained. 2. Made of high‑quality fiber paper, it can provide instant and reliable results, and can test 6 parameters: TC, CL / Br, PH, Alk, CYA, TH. 3. Wide range of applications, suitable for different water quality detection, widely used in various scenes such as tap water, drinking water, aquarium, pond water, etc. 4. Small size, the test paper is packed in a bottle, which can be easily taken and placed, which is convenient for next use. 5. High practicability, it can detect water bodies that are in contact at ordinary times, such as the water quality of spas and swimming pools, and can ensure health. Specification: Item Type: Water Quality Test Paper Material: Paper + ABS Weight: Approx. 31g / 1.1oz Test Items: TC, CL/Br, PH, Alk, CYA, TH Scope of Application: It is suitable for fresh water. Package List: 50 x Test Paper Features Quick and Easy Detection: Test water quality in just 40 seconds for fast results, ensuring efficient and convenient pool or spa maintenance. Easy-to-Read Comparison: Easily compare test strip color range with the provided bottle for straightforward water quality adjustments in swimming pools or spas. Clear and Reliable Results: Instant and reliable water quality assessment without needing to move the test strip, ensuring clarity and accuracy. Simple and Clear Instructions: User-friendly water test strips with straightforward instructions to promptly obtain dependable results. Versatile Applications: Suitable for various settings including swimming pools, spas, and other water bodies, offering wide-ranging water quality testing capabilities.