General description The FLITI TDS-2B Water Quality Meter Tester is a professional digital measuring pen designed to assess water hardness and mineral impurity content. It features a unique temperature compensation function that allows for automatic conversion of TDS values at a water temperature of 25 ℃. The device is equipped with a large LCD display and a waterproof design, making it easy to read TDS values. Please note that it cannot test pH values or specific substances dissolved in the solution. Technical specifications TDS value: Represents the total content of water-soluble substances, including calcium, magnesium ions, and trace elements. Test probe material: Titanium alloy Power supply: 1.5V * 2 button battery Battery life: Normal use for two years Usage Ideal for measuring water hardness and mineral impurity content. Not suitable for testing pH values or specific dissolved substances.