Digital Water Quality Tester Pen TDS 0-9990 PPM PPM with

[WIDE RANGE OF APPLICATIONS] This versatile TDS tester is perfect for a variety of environments, including aquariums, beverages, food processing, fish hatcheries, swimming pools, laboratories, schools, and colleges. It's an essential tool for quality control, ensuring water purity in both professional and home settings. [ACCURATE TDS MEASUREMENT] This digital TDS meter works by measuring the electrical conductivity of water to accurately reflect the total dissolved solids (TDS) value. It effectively tests for impurities such as soluble salts, ionic organic compounds, and heavy metal ions, providing you with reliable data to assess your water purity and promote a healthier lifestyle. [Auto Power Off to Save Battery] Designed with a smart auto power-off feature, this device will turn off after 5 minutes of inactivity to conserve battery life. This feature ensures your meter lasts longer between battery changes. offering worry-free operation for regular water quality checks.
[SIMPLE OPERATION AND COMPACT DESIGN] With simple one-button operation, just remove the protective cap and press ON/OFF to begin testing. The slim, pen-style design with a measuring range of 0 to 9990 ppm and a temperature range of 0 to 99°C makes it portable and easy to use anywhere, providing a convenient solution for your water analysis needs.
[EASY MAINTENANCE AND READING FUNCTION] The built-in hold function allows you to save and lock measurement results on the screen for convenient reading and recording. This feature is especially useful when you need to compare measurements or document water quality without rushing, making your testing process more efficient and user-friendly.