2 Pack pH Meter and TDS Meter, 0.05 pH High Accuracy Tester Pen, ± 2% Readout Accuracy Digital Water Quality Filter Pen, 0-9990ppm, Ideal Water Purity Test for Drinking Water, Aquariums, Hydroponics

The pH TDS meter is a revolutionary water testing device that measures both acidity (pH) and dissolved solids (TDS) in just seconds! With advanced microprocessor technology, this ergonomically designed pen combines TDS meter, EC meter, and pH tester all in one.

Super accurate and reliable, it's perfect for monitoring water purity in drinking water, RO/DI systems, aquariums, and hydroponics.

Plus, its backlit display and hold-lock function make it easy to use even in low-light conditions.

Don't settle for anything less - get the pH TDS meter today!