Features: Features 8 blade fan and high precise bearing sensors for accurate wind gauge speed readings with 0.5s response time. Ideal for industrial and outdoor applications like HVAC testing or weather monitoring. Easily captures and stores wind gauge speed during measurement, enabling convenient data analysis and comparison for professional. Three color backlit screen (green/orangeness/red) intuitively indicates wind intensity levels, providing instantly visual for quick readings. Supports 6 wind gauge speed units with simple button switching, meeting diverse professional and regional requirements. Lightweight ABS construction (160x46mm) fits in pockets effortlessly, perfect for on site measurements, field research, and mobile work environments. Specifications: Component: ABS Size:Approx.160x46mm/6.29x1.81inch Power supply: 2x1.5V 3A batteries (not included) Package Includes: 1pcs Handheld wind gauge speed Meter(without battery) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.