HVAC System Accurately check the air flow for AC, vents, dust collector,etc. Air Flow in CFM (Q) = Flow Velocity in Feet Per Minute (V) x Duct Cross Sectional Area (A) Outdoor Activities Keep track of wind conditions for outdoor plans. The Wind Speed Meter can help you ensure every hunt, drone flight,kite flying,boating safer and joyful. Carrying Bag Included: This anemometer comes with a waterproof carrying pouch that allows you to carry and protect the machine better during outdoor activities. Large Backlight LCD Display: This handheld anemometer has a large LCD screen with a built-in white backlight that illuminates the screen at night, allowing you to read data at a glance in poorly lit areas or at night.
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