Specification:Material: Plastic.Size: Show as picture.Range: 0-30m/s, 0-5860ft/min, 0-55knots, 0-90km/h, 0-65mph.Resolution: 0.01m/s, 1.968ft/min, 0.019knots, 0.036km/h, 0.022mph.Threshold: 0.3m/s, 60ft/min, 0.6knots, 1km/h, 0.7mph.Accuracy: 5% .Battery: 9V battery.(Not included)NoteThere might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement.The user manual only comes with English version. DescriptionThis portable wind meter has a large LCD screen,it can show the results clearly and has low battery alert.Designed with backlight function,you can turn it on to see screen more clearly in the dark.You can use it to measure wind speed and wind temperature,the auto power off design makes it energy saving.Fit for using at many outdoor activities,you can use it to measure the wind speed during sailing,surfing,sky diving and more.Portable and lightweight,it comes with a storage bag,you can use it to easily store the wind meter.