EXTECH 45168CP Mini Thermo-Anemometer (Built-in Compass)

ft/min (feet per minute): 60 to 3937 ft/min ±(3%rdg + 40 ft/min)
m/s (meters per second: 1.1 to 20 m/s ±(3%rdg + 0.2 m/s
km/h (kilometers per hour: 0.8 to 72.0 km/h ±(3%rdg + 1.4 km/h)
MPH (Miles per hour): 0.5 to 44.7 MPH ±(3%rdg + 0.4 MPH)
knots (nautical miles per hour): 0.4 to 38.8 knot ±(3%rdg + 0.6 knots
Beaufort Force: 1 to 8 BF ±1
Temperature: -15 to 50°C ±1.8/1°C
Relative Humidity: 0.1% to 99.9% ±3%
Wet Bulb: -5 to 50°C
Compass: 0 to 360°
Dimension: 140 x 45 x 25mm
Weight: 95g
Accessories: CR2032 lithium battery and lanyard

Datasheet

Manual