Handheld Digital Anemometer Professional Multifunction Anemograph with Detachable Auxiliary Fan Air Meter with Storage Case

Features:
Six-wheel design for more accurately measure current wind speed, air volume, temperature and humidity.
Wind speed/flow units and temperature units selection.
Maximum/Minimum/Average wind speed measurement.
2.9-inch LCD screen with backlight for clearly reading.
Real-time measurement when connecting USB with computer software.
Automatic shutdown if there is no operation after 5 minutes.
Data storage function, which can save up to 960 groups of measured data.
Three-axis magnetic field sensor for wind direction angle measurement.
Data hold function, low battery indication.