Compact Adult Unisex Pocket pH Meters

A TDS meter (also known as a ppm pen, nutrient tester, or TDS stick) is an inexpensive and convenient digital tool that can instantly check your overall water quality. The TDS-4 is a great tool for a wide range of applications, including drinking water, water filtration and purification, hydroponics (to test your nutrients), colloidal silver, aquariums, RO/DI systems, pools and spas, and more.

The TDS (Total Dissolved Solids) value represents any salt, metal, or mineral present in the water. With the push of a button, the TDS-4 can display your overall water purity level in ppm (parts per million) on the screen. The lower the TDS level, the purer the water, with 0 ppm being pure H2O. This makes the TDS-4 an excellent choice for checking your tap water quality or knowing when to change a filter. (It's important to note that the TDS meter does not test for biological contaminants.)

The TDS-4 features advanced microprocessor technology and ATC (Automatic Temperature Compensation), ensuring accurate and reliable measurements. Its sleek design makes it suitable for both personal and commercial use. Alkaline batteries are included, and the hold function allows you to freeze the measurement for easy viewing outside of the water. Additionally, the auto-off feature helps conserve battery life by automatically shutting off the meter after 10 minutes of non-use.

This TDS tester is ideal for a wide range of applications, including water purification, wastewater regulation, aquaculture, hydroponics, and colloidal silver. With its advanced features and versatility, the TDS-4 is a valuable tool for anyone looking to quickly and easily monitor the quality of their water.

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