Designed to meet your various demands for wind speed/temperature/humidity measurement, our Smart Sensor AS856 Digital Air Flow Anemometer Wind Speed Meter (Battery Not Included) brings so many advantages, such as data hold/storage/delete function, key-touch beep function, low battery indication, auto shut-off. It also comes with a large screen LCD screen with backlight and an adjustable wind wheel handle. Up to 500 data could be recorded as well. Furthermore, you can connect it to your PC simply via the USB cable. Cannot wait for taking it now? Just action!