Versatile applications: Our pH meters are used to check the pH of all kinds of liquids. Water hardness meters and CE testers are specially designed for testing the quality of liquids such as drinking water, aquariums, swimming pools, spas, ponds, bathing water and water. well water and can guarantee water safety for daily life. Specialized instruments for measuring conductivity, water hardness and temperature of all liquids. Easy to use and widely distributed: pH meter and TDS are equipped with sensors with sensitive electrodes and allow the water quality to be checked by simply dipping them in the solution for 4 seconds. It is a great tool for a wide range of applications: for example, aquariums, ponds, fisheries, swimming pools, spas, laboratories, chemical industry, hydroponics, agriculture, etc. Highly Accurate and ATC Functions: The pH meter has a digital range of 0.00 to 14.00 (pH), while the EC and TDS digital meters have a digital range of 0 to 19,990 ppm. The pH resolution is 0.01pH with an accuracy of 0.05pH. TDS: 0~9990ppm, conductivity: 0~9990us/cm, Accuracy: 2%. Our meters are equipped with a reliable automatic temperature compensation (ATC) system to ensure accurate readings at different temperatures. Portable and up-to-date LCD display: Thanks to its compact size, you can easily take everywhere. Both the digital pH meter and the TDS meter are equipped with an illuminated display, thanks to which you can read the water quality results more accurately. It is easy to use, even in dark environments. Both have an auto shut-off feature for longer battery life. The best gift and the ideal choice.