Mini anemometer measures any type of wind current

The handheld M130 mini anemometer measures air speed and temperature from any type of wind current. It measures wind speed up to 55 mph (90 km/h) and displays the results in m/s, km/h, mph, knots, or ft/min. The meter has a light air response of 0.4 m/s and comes with auto power off with disable function. It also features a dual LCD display, with the maximum value on the primary display being 9999 and the maximum value on the secondary display being 999. It has a sample rating of one sample per second.

The M130 is suitable for spot measurements at air outlets on account of its 30-mm vane. It's readily available and is priced at $84.