Features: Accurate Water Quality Testing This TDS pen allows you to easily measure the TDS value of water. With a measurement ranges of 0 9990PPM and an accuracy of +/ 2%, it ensures precise results every time. Portable and Convenient Featuring a detachable sensors and a compact size, this water quality tester is designed for easy carrying and storage. Take it with you wherever you go and test water quality while travel. Suitable for Various Users Whether you are a homeowner, a gardener, or a professional, this TDS pen is perfect for you. It provides essential information about water quality, helping you make informes decisions. Versatile Applications This water quality tester can be used in a wide ranges of scenarios, including testing tap water, aquariums, swimming pools, hydroponics, and more. Ensure the safety and water quality sources with this reliable device. Clear Display The LCD screen of this water quality tester shows the measured values clearly, allowing for easy reading. Stay updates about the qualities of water with this user friendly tool. Specifications: Material: ABS Size: approx 76x47x20mm/3x2x1inch Measuring ranges: 0-9990PPM, automatic aboves 999ppmx10 Resolution: 1PPM (0-999PPM); 10PPM (1000-9990PPM) Accuracy: ±2% Tees joints: 3 Battery: 2x1.5V (button battery) Package Includes: 1xWater Quality Tester note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.