Features: Experience the precisions of Dissolved Oxygen Meter, for accurate oxygen level measurements, ensuring reliable readings even at night. Crafted from plastic, this portable oxygen concentration meter boasts a user friendly port, making it a essential tool for any analytical task. For environmental scientists, aquaculture managers, and water professional, this device is tailored to meet the demands of experts who require consistent and precise data. Whether monitoring oxygen in fish farm, conducting water quality assessments in natural body of water, or managing aeration systems in wastewater facilities, our Dissolved Oxygen Meter delivers unparalleled performances. Enhances your analytical capabilities with this indispensable instrument that combines functionality, empowering to conduct thorough inspections and maintain conditions. Specifications: Material: Plastic Automatic Temperature Compensation: 0-40 Measurement: 0.0-40.0mg/L Dissolved Oxygen Saturation: 0.0-300.0% Temperature: 0-40C; 32-104F Battery: 3x1.5V LR44 Battery Requires(NOT Include) Size: About. 155x35mm/6.1x1.38in Package Includes: 1 Set Dissolved Oxygen Meter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.