Features Data Retention Functionality: Easily store, delete, and retrieve data for efficient tracking and analysis of measurements Large LCD Display: Clearly view and record measurements with a bright screen that enhances visibility in any lighting conditions 500 Data Records Capacity: Conveniently access up to 500 stored records, ensuring you never miss important data during your measurements High Accuracy Measurement: Rely on precise readings for critical metrics like wind speed and air volume, ensuring accurate assessments every time Smart Power Management: Stay informed with a low battery indicator and benefit from automatic shutdown, extending the life of your device Features: 1、Data retention, storage, and deletion functions can better collect measured data. 2、Large？screen LCD display, display data clearly and visibly, so as to better measure and record. 3、With 500 data records, it is more convenient to find data and avoid data omissions. 4、High？accuracy measurement, accurate measurement of key data such as wind speed and air volume. 5、Low battery indicator and automatic shutdown function, timely response to power, maintain longer battery life. Specification: Item Type: Anemometer Model: GM8909 Material: ABS Battery: 1.5V 3xAAA Battery (Battery Not Included) Purpose: It is suitable for the measurement of wind speed and direction. Wind Speed Range Unit0.001-9999 Package List: 1 x Anemometer (Battery Not Included) 1 x Speed Measuring Rod 1 x Manual 1 x Toolbox Package List 1 x Anemometer (Battery Not Included) 1 x Speed Measuring Rod 1 x Manual 1 x Toolbox