This product is a comprehensive five-in-one water quality tester, capable of testing TDS, pH, EC, and temperature, making it a versatile tool for water quality analysis. Applicable Industries:Designed for wide applicability, it is perfect for use in water production farms, fish farms, quality control centers, and water factories, covering a range of industries. Easy to Use:With its user-friendly design, this tester is easy to use, allowing professionals and non-professionals alike to accurately test the quality of water. High Accuracy:The tester high accuracy in testing, providing reliable results that can be relied upon by industries and organizations. Compact Design:Its compact design makes it easy to carry and use, making it an ideal tool for on-the-go testing.