ACCURATE AND RELIABLE: To achieve high accuracy, the TDS water tester is equipped with a titanium alloy probe, and an efficient intelligent chip that not only ensures performance but also contributes to exceptional accuracy, making it a trustworthy water quality tester MULTIFUNCTIONAL AND UPGRADED: Professional TDS (Total Dissolved Solids), EC (Electrical Conductivity) and Temperature Meter 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use. These enhancements make it a user-friendly tds meter digital water tester for a variety of applications EASY AND INSTANTLY: Just turn TDS meter on and stir water gently, then stabilized readings will be auto-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 2 minutes MULTIPURPOSE TDS TESTER: Test the purity of drinking water to ensure it's , if Reverse Osmosis (RO)/DI System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), pool and , etc OUTSTANDING AFTER-SALES SERVICE: We are committed to providing exceptional after-sales customer service for the digital TDS water tester meter, ensuring a worry-free purchase #plastic #tools #DIY #fixit #fyp - @blaze_17gy