Anemometer series can measure temperature, wind speed, and wind count. These meters can be used in energy saving, HVAC, fishing and other industries that use exhaust or ventilation systems. Features: • Data hold, LCD backlight • ?/? Selectable • Auto power off (cancelable) • 2044 sets data storage • Auto record function with 0 .5~255s interval • Wear-proof fan shaft for improved accuracy and reliability • Wind speed modes: MAX, MIN, Real-time • Wind count modes: MAX, 2/3 MAX, MIN, AVG, real-time • 7 Selectable units: m/s, km/h, ft/min, MPH, KNOTS, CFM, CMM