Features: High accuracy Dissolved Oxygen Meter with electrochemical sensors ensures rapid, accurate readings in /L or % saturation for stable water quality analysis. Equipped with automatic temperature compensation and an LCD interfaces, this portable water testing device maintains measurement accuracy across diverse environmental conditions. Essential for aquaculture professional, environmental researcher, and laboratory technicians requiring dependable dissolved oxygen testing equipment for critical water monitoring tasks. Perfect for outdoor field studies, indoor lab experiments, or routine pond maintenance where real time oxygen levels tracking and data storage capabilities are vital . The strong ABS construction and driven navigation systems make this multi functional water analysis tool user friendly for both routine checks and extended scientific investigations. Specifications: Component : ABS. Size: about 160x45x45mm/6.3x2x2inch Styles: with blueteeth/without(optional) Detection ranges: DO: 0-199.9% 0-20mg/L; Temp: 0°C-50°C (32°F-122°F). Accuracy: DO: 0.1% 0.01mg/L; Temp: 0.1°C (0.2°F). Accuracy: DO ±3%F.S; Temp: ± 1.0°C. Battery: Not included Package Includes: 1xDissolved Oxygen Detector note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.