HOLDPEAK 866B-WM Digital Anemometer Handheld Wind Speed Meter for Measuring Wind Speed, Temperature and Wind Chill with Backlight and Max/Min STEADY WIND SPEED MEASUREMENT & HIGH ACCURACYWind Speed Range: 0.3-30m/s(MAX up to 69mph) and Accuracy of Wind Speed: 0.1dgts NOVEL FUNCTIONSupport 0-6000m altitude test, as well as atmospheric pressure detection.This is good for climbing and comparison of atmospheric pressure values. MULTIFUNCTIONAL ANEMOMETER YOU WILL NEEDWind Speed, temperature, wind chill, Relative Humidity and Dew Point 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. REASSURING AFTER-SALES SERVICEWe have perfect quality warranty. If the meter what you received have any quality issues, please contact our After-sales personnel in time and we will serve you in good faith.