This is a brand new CEM DT-318 CE certified industrial digital Thermo- Anemometer. This 2-in-1 meter measures the air velocity and the air temperature simultaneously. DT-318 has fast response. Its high accuracy design satisfies the most demanding jobs.This device is a must have for measuring the wind speed (up to 108 Kmeters per hour). The built-in thermometer measures the air temperature (-10 to 60 deg C or) as the air speed is measured. DT-318 was designed to be used at home, office, factory or industrial buildings.This device operates on a 9V battery and is very portable due to its light weight. Its flexible gooseneck helps user to get to the hard to reach areas.