Feature 1Stable Performance: Safe and reliable professional digital anemometer. Can measure wind speed, air volume, wind, both sides of the anti slip design, easy to use, simple operation. 2Strong Data Collection: Impeller type and bearing sensors, short response time, strong anti interference ability, small wind can also be sensed, strong data collection. 3No Difference Between Day and Night: LCD night vision, backlight technology, no difference between day and night, clear value, visible without fear of sunlight, weak light at night. 4Six Kinds of Wind Speed Unit Measurement: A variety of wind speed unit one key switch, so that the measurement more intelligent and convenient. (m/s, Km/h, ft/s, ft/m, knots, mile/h) 5Air Volume Measurement: Before air volume measurement, enter the cross sectional area of the air duct, CFM, CMM, CMS. 6Wind Rating Measurement: Real time display of wind rating, visual data, you can intuitively see the current wind speed, wind rating: 0~12.Item Type:HandheldAnemometerWeight: 314g/11.4ozBattery (shipped without battery): 3 x AAA batteryProduct Size: 195 x 70 x 30mm/7.7 x 2.8 x 1.2inDisplay: LCD display, maximum display 9999Wind Speed Measurement: range 0.40~30.00m/sSampling Time: about 0.5 seconds/timeSensor: impeller type and bearingWind Power Rating: 0~12Maximum, Minimum, and Average: Record and view the minimum, maximum, and average values.Data Hold: Lock the display readingOperating Environment: 0~50, maximum relative humidity of 80%, altitude < 2000mStorage Environment: -10~50, maximum relative humidity 70% (take out the battery)Automatic Shutdown: 10 minutes (can cancel the automatic shutdown function)Functions: wind speed measurement, air duct cross sectional area setting, data retention, unit selection, automatic shutdown function.Application: Widely used in wind energy, meteorology, industry, agriculture, water conservancy, environmental protection, highway, airport and other fields.Material: Plastic .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Anemometer1 x Storage Box1 x Instruction ManualNotePlease remove the battery before storing the instrument for a long time.