Feature:1. This meter is a portable, professional measuring instrument with large-screen LCD and backlight, multi-unit switching functions.2. It is used for wind speed measurement, area setting and air volume measurement.3. Wind speed unit is switchable: m or s, km/h, mil or h, ft or m, ft or s or knots.4. Area unit is switchable: m2, ft2.5. Air volume unit is switchable: CMS, CMM, CFM.6. This meter has the functions of reading hold, maximum, minimum, etc.7. Area unit is switchable: m2, ft2. Air volume unit is switchable: CMS, CMM, CFM.Specification:This high-precision digital anemometer can help you measure Air Velocity (wind speed) whether youand 39 re flying RC planes, drones, wings, helicopters. Itand 39 s very useful and widely used in hiking, sailing, drone pilot, ventilation system, etc.Features:This meter is a portable, professional measuring instrument with large-screen LCD and backlight, multi-unit switching functions.It is used for wind speed measurement, area setting and air volume measurement.Wind speed unit is switchable: m or s, km/h, mil or h, ft or m, ft or s or knots.Area unit is switchable: m2, ft2.Air volume unit is switchable: CMS, CMM, CFM.This meter has the functions of reading hold, maximum, minimum, etc.Specifications:Material: ABSandTPEm or s(meter per second): 0.80-30.00 andplusmn (2.0 percent readingand50 characters)ft or m(feet per minute): 78-5900 andplusmn (2.0 percent readingand5 characters)ft or s( feet per second): 1.30-98.50 andplusmn (2.0 percent readingand50 characters)km/h(kilometer per hour): 1.40-108.00 andplusmn (2.0 percent readingand50 characters)mil or h(miles per hour): 0.90-67.20 andplusmn (2.0 percent readingand5 characters)Knots(nautical miles per hour): 0.8-58.30 andplusmn (2.0 percent readingand50 characters)Resolution: 0.01m or s 1ft or m 0.01knots 0.01km/h 0.01ft or sCFM: 0 to 99990 or 0 to 9.999ft2CMM: 0 to 99990 or 0 to 9.999ft2CMS: 0 to 9999 or 0 to 9.999m2Work Height: Maximum 2000mWork Mode: Frequency of wind speed conversionDisplay: LCDMaximum Show Value: 9999Sampling Time: About 0.4s or timeMAX or MIN Function: YesDisplay Back Light: YesAuto Power Off: YesPower Supply: 1 x 9V 6F22 battery(NOT Included)Operation Environment: 0anddeg C-40anddeg C, 0-85 percent RH(no moisture condensation)Detector (fan) Operation Environment: -20anddeg C-80anddeg C, 0-95 percent RH(no moisture condensation)Storage Environment: -10anddeg C-50anddeg C, 0-80 percent RH(no moisture condensation)Item Size: Approx. 16.5 x 8.5 x 3.8cm or 6.5 x 3.4 x 1.5inItem Weight: Approx. 151g or 5.32ozPackage Weight: Approx. 277g or 9.79ozPackage Size: Approx. 19 x 11 x 6.5cm or 7.5 x 4.4 x 2.6inPackage List:1 x Multifunction Digital Anemometer1 x Portable Bag1 x User Manual(English)Package List:1 x Multifunction Digital Anemometer1 x Portable Bag1 x User Manual(English)