Multifunctional water quality analyzer (pH/TDS/EC/salinity/temperature), set of 2, portable, high-precision LCD screen.

[5-in-1 pH Meter] This water quality tester simultaneously and accurately measures pH, TDS (Total Dissolved Solids), EC (Electrical Conductivity), salinity, and temperature. You can use it to test water hardness, pH, or conductivity. [Backlight] Even in dimly lit environments, you'll have no trouble reading the displayed values. This tester is equipped with a VA backlight, allowing you to clearly view measurement results in all circumstances. [Easy to Use] Simply remove the protective cap from the pH pen, immerse the tester's electrodes in the solution, and then press the button to take the measurement. [Multifunctional Tests] This portable water quality tester can be used to measure the quality of hydroponic water, drinking water, tap water, reverse osmosis system water, aquarium water, etc.