STEADY WIND SPEED MEASUREMENT & HIGH ACCURACYWind Speed Range: 0.3-30m/s(MAX up to 69mph) and Accuracy of Wind Speed: 5% dgts ESSENTIALS FOR BAD WEATHERYou will know the hurricane trend before going out. anemometer provides fast measurement for analysis of critical environment conditions. MULTIFUNCTIONAL ANEMOMETER YOU WILL NEEDWind Speed, temperature and wind chill in one LCD display. Digital Anemometer Handheld measure wind speed in 5 units: m/s, km/h, ft/min, knots, mph. MORE EXTRA SPECIFICATIONS THAN OTHERS WIND SPEED METERThrough the built-in temperature regulator to adjust C/F temperature. Record and recall Max/Min/Average/Current function. Low battery indication. Screw hole in the button can be connected a lanyard.