The DO9100 Dissolved Oxygen Meter is a highly accurate instrument designed for precise measurement of dissolved oxygen and temperature in various aquatic environments. Equipped with a built-in microcomputer processor, it automatically calculates and compensates measurement data, ensuring reliable and consistent results. Crafted from durable ABS material, this meter features a detachable probe with a polarographic sensor and thermistor, enabling accurate oxygen detection and temperature compensation for optimal performance. Key Features: · **High Accuracy Measurement**: Measures dissolved oxygen concentration (0.0-40.0 mg/L) and saturation (0.0-300.0%) with an accuracy of ±1.5% F.S, and temperature from 0.0-40.0℃ (32.0-104.0℉) with ±0.5℃ accuracy. · **Advanced Probe Design**: Includes a permeable membrane with a polarographic sensor and thermistor, allowing oxygen to pass through while isolating the sensing electrode, ensuring precise readings and temperature compensation. · **Clear Digital Display**: Features an easy-to-read digital screen for quick data monitoring, with automatic shutdown after 15 minutes of inactivity to conserve battery life and a low battery warning indicator. · **Temperature Compensation Function**: Automatically adjusts for temperature effects on oxygen solubility, enhancing measurement accuracy in varying environmental conditions. · **Calibration Support**: Offers single-point or dual-point automatic calibration, including zero point and 100% air calibration for simplified and accurate setup. · **Wide Application Range**: Ideal for use in freshwater and marine aquaculture, swimming pools, ponds, laboratories, beverage factories, sewage treatment plants, scientific research, and educational experiments. · **Portable and User-Friendly**: Lightweight design with a detachable probe makes it convenient for field and laboratory use; powered by 3 x 1.5V LR44 batteries (not included). Specifications: · Material: ABS · Model: DO9100 · Measuring Range: Oxygen concentration 0.0-40.0 mg/L; Dissolved oxygen saturation 0.0-300.0%; Temperature 0.0-40.0℃ (32.0-104.0℉) · Resolution: Oxygen concentration 0.1 mg/L; Dissolved oxygen saturation 0.10%; Temperature 0.1℃/0.1℉ · Accuracy: Oxygen concentration ±1.5% F.S; Dissolved oxygen saturation ±1.5% F.S; Temperature ±0.5℃ · Response Time: ≤45 seconds (at 20℃) · Temperature Compensation Range: Automatic 0-40℃ · Battery: 3 x 1.5V LR44 (not included) · Automatic Shutdown: After approximately 15 minutes of inactivity · Operating Environment: 0.1-40.0℃, RH maximum 90% Package Includes: · 1 x DO9100 Dissolved Oxygen Meter The DO9100 Dissolved Oxygen Meter is a reliable and precise tool for professionals and hobbyists requiring accurate dissolved oxygen and temperature measurements across diverse aquatic and laboratory settings. Its advanced sensor technology, automatic compensation features, and user-friendly design make it an essential instrument for maintaining optimal water quality and conducting scientific research.