1. Wind Speed Measurement: Feature: Accurately measures wind speed with multiple units (m/s, km/h, ft/min, knots, MPH). Application: Ideal for weather monitoring, outdoor sports, wind power inspection, and industrial ventilation testing. 2. Air Volume Measurement: Feature: Calculates airflow (CFM//CMM) with customizable area settings (0.001~9999/ft). Application: HVAC system debugging, factory airflow optimization, cleanroom ventilation checks. 3. Temperature Measurement: Feature: Monitors ambient temperature (-10~45) with / switch. Application: Indoor/outdoor environment monitoring, cold storage/HVAC inspections, lab records. 4. Data Logging & Analysis: Feature: Displays real-time, max, and min wind speed values; supports data hold (HOLD). Application: Long-term wind field studies, equipment performance tests, scientific research. 5. Smart Power Management: Feature: Rechargeable battery (TYPE-C), auto-shutdown, low-power alert, and backlight. Application: Fieldwork, extended monitoring, low-light or nighttime use. Color: As Shown Material: ABS Package Contents: 1 set x handheld wind testers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.