Let us see How our France customers evaluate GVDA Digital Anemometer Portable Wind Speed Meter Air Velocity Gauge Windmeter LCD Backlight Display Temperature Humidity Meter?
Among other things this type of instrument is useful for checking ground conditions when flying radio control planes and helicopters. It is also important to have a way of measuring air flow through computers and equipment if you are experimenting with fan replacement to reduce noise. Sometimes equipment with multiple fans will be a carefully balanced system, and replacement of a noisy fan in one area might result in other areas of little or even reversed airflow, and having an airflow sensor that is a little more quantitative than your hand can be important.
This anemometer is extremely easy to use without any menus to step through. All settings are available on dedicated push buttons: speed units, temperature units, and the backlight on/off toggle. The LCD display has a high contrast with large digits, and the backlight is very uniform. It even has a humidity sensor built in. The MAX/MIN function is useful and in fact necessary for many instances where you can't hold the vanes in the proper position and see the display at the same time, such as when measuring flow in an air duct.
The tiny fan on the top has bearings with the lowest friction that I have ever seen. The blades will spin at normal walking speeds, and it will detect airflow from heat or A/C vent some distance away. I was even able to measure air flow from a leaky sliding glass door during a recent winter storm.
