This anemometer meter is small which is very good for carrying it with the strap provided and measures wind speed it also has a built-in useful thermometer which can measure the temperature in both Fahrenheit and Celsius units. - Model: SmartSensor IntelliInstruments Plus AR-816 - 1.5-inch back lighted LCD display - Powered by 1 x CR2032 battery (included) - Features: wind speed temperature wind chill temperature freeze/icing warning - Celsius and F ahrenheit units selectable - Wind speed units: m/sft/minknotskm/hrmph - Average and maximum readings computation and memory - Wind speed range: 0-30m/s 0-5860ft/min 0-55knots 0-90km/hr 0-65mph +/-5% - Wind chill temperature range:-10'C - +45'C +/-2'C14'F ~ 113'F +/- 3.6'F