WATER PURIFIER TESTER: Equipped with advanced microprocessor technology, enhancing its accuracy and efficiency, the Watts Premier Digital Water Purifier Tester is a reliable tool for ensuring clean, safe, and high-quality water in various settings. USER-FRIENDLY DESIGN: This tester features a large, easy-to-read LCD screen, ensuring that you can quickly and accurately view your water quality results. The clear, backlit display provides excellent visibility in various lighting conditions—a user-friendly display that makes it simple for anyone to interpret the data. ACCURATE RESULTS: This tester measures Total Dissolved Solids (TDS) in your water, offering a wide range of 0 to 9990 parts per million (ppm), an extensive measurement range that allows for versatile applications, from checking the purity of your drinking water to assessing water quality in industrial processes. COMPREHENSIVE FEATURES: This tester is equipped with a built-in hold function designed to save measurements, making it easy to read and record results. It also has a built-in sensor that provides automatic temperature compensation, as well as an auto-off function that shuts off the unit automatically after 10 minutes of inactivity. THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.