This popular anemometer ANE8903 measures flow or wind speed up to 30 m/s (approx. 110 km/h). the ambient temperature of -10…+50 °C as well as the wind speed are displayed as °C or °F or as m/s or fpm. With the MIN, MAX and AVG (average) functions the user can save or display the MIN, MAX and average values. Via RS232 interface the recorded values can be transfered to a PC. The voltage supply is with a 9 V battery.