SMART SENSOR ST6816 Handheld Digital Anemometer Wind Speed Measurement Measurer Air Velocity Airflow Meter Gauge with LCD Backlight Measuring Range 0.

Features:[Wide Application] It can measure air velocity and air volume, which can be used in wind energy, meteorology, industry, agriculture, hydrology and water conservancy, environmental protection, highways, airports, etc.[Various Units of Measure] Press the UNIT button to select unit(m/s, km/h, mil/h, ft/m, ft/s, knots) when measuring air velocity; and select unit(CMS, CMM, CFM) when measuring airflow.[Accurate Measurement] Measuring range from 0.40m/s to 30.00m/s; supports beaufort scale from wind force 0 to 12.[Practical Function] Press the Data Hold button to freeze the displayed reading; auto power off in 10 minutes without any operation; maximum/minimum/average value mode is enabled.[User Friendly] Measures 7.75*2.67*1.1in and weighs only 4.79oz, featuring compact and lightweight; and LCD backlight ensures clear visibility even in low-light area.Note:*Batteries are not included.*Do not touch the fan blade with force.*Do not store or operate the instrument in area with high temperature or humidity.*In use, do not let the strong light directly shine on the fan, in order to avoid measurement errors.*Avoid violent vibration.*Remove the battery before storing the instrument for a long time.*To measure the airflow, the cross-sectional area of the tested air duct must be determined and input into the anemometer.Parameters:Display: LCDMax. Counts: 9999Air Velocity: 0.40-30.00 m/sSampling Rate: Approx. One reading per secondSensor: Air velocity/flow sensor; angled vane arms with bearingBeaufort Wind Scale: 0-12Max/Min/Avg: Record and view minimum, maximum, averageData Hold: Freeze readingOperating Conditions: 0-40(Temperature), 80%RH(Humidity), 2(altitude)Auto Power Off: 10 minutesPower Supply: 3 * 1.5V AAA(LR03) batteries(not included)Accuracy.