Features: Ensure your drinking water is safe with our Digital Water Tester, designs to accurately measure soluble salts, ionic organic compounds, and heavy metal ions for reliable result each time. Featuring high sensitivity and automatic power off function, this TDS meter provide precise readings and conserves battery, making it a stable tool for consistent water quality monitoring. Ideal for health awake individuals, laboratory technicians, and Aquariums enthusiasts who prioritize water purity and safety in their daily activity . Perfect for use in laboratories, schools, swimming pools, and even outdoor camping trip , this water tester adapts to various environment to deliver accurate water quality assessments. With its Small design and Fast reading capability, this water quality tester is a must get for anyone serious about maintaining best water conditions, ensuring peace wherever go. Specifications: Material: ABS Size: about 20X15X148mm/0.8x0.6x6inch Accuracy: 1ppm Error: ±2%-3% Measurement ranges: 0-9990ppm Battery: 1x3V(CR2032 button battery) Package Includes: 1xDigital Water 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 differences between different monitors, the picture may not reflect the actual colorful of the item.