AcuRite 01604M Pro Color Digital Weather Station with Wind Speed, Temperature and Humidity High-precision 3-in-1 wireless weather sensor accurately measures the temperature, humidity and wind speed Daily and all-time high and low records Current wind speed, average wind speed and peak wind speed readings are tracked and updated every 18 seconds Illuminated full color digital display with adjustable dimmer; electric-powered with optional battery backup Easy setup, includes sensor mounting hardware and features a 2-year battery life for maintenance-free operation