Features: Achieve precise water analysis with the Digital Water Tester, featuring 0.01 precisions and salinity measurement up to 10000 ppm, designed to meet WHO standards for safe drinking water (650mV+ ) while monitoring pools, aquariums, and hydroponic systems. Equipped with Automatic Temperature Compensation, a high contrast LCD screen, and auto shutdown functionality, this lightweight ABS device delivers //readings with ±2% accuracy across 32 140°F temperature ranges. Essential for aquarium enthusiasts, pool maintenance , and households requiring consistent water quality verification for , chlorine pools, or drinking water. Perform multiparameter testing in environments – from saltwater aquariums and hot tubs to hydroponic farms and water purification systems Simplify calibration with pre activated probes and enjoy extended battery life through features Specifications: Ingredient: ABS. Size: 42x42x109mm. Weight: 109g. Measurement accuracy: ±2% Power supply : 3V. : 0.00-14.00ph. conductivity: 0-9999μs/cm, 10-400ms/cm. Total dissolubility of solids: 0-9999ppm/10-200ppt. salty salinity: 0-9999ppm/10-200ppt. Seawater : 0-1.222. potential: ±990mV. TEMP temperature: 0-60°C/32-140°F. Package Includes: A water quality detection pen, a manual note: Please allow 1-3cm error due to manual measurement. pls 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.