We are offering avm-702 anemometer. Display: 13 mm lcd 3 12 digitsmeasurement: ms (meters per second)kmh (kilometers per hour)ftmin (feet per minute)knots (nautical miles per hour)sensor structure: conventional twisted van arm and low friction ball bearing designsampling time: approx. 0.4 sec.Operating temperature: 0c to +50c (32f to 122f)operating humidity: less than 80% rhpower supply: 006p dc 9v battery (heavy duty type)power current: approx. Dc 6 madimension: main instrument: 180 x 73 x 23 mmsensor head: 72 mm weight: main instrument: 381 gr.Sensor head: 260 gr.