100% brand new and high quality This meter is a portable, professional measuring instrument with large-screen LCD and backlight, multi-unit switching functions. This meter can be used for hand-held or fixed measurement. This meter has the functions of reading hold, maximum, minimum, etc. It has a low battery indicator . Specification: Wind velocity:m/s(meter per second): 0.80~30.0 (2.0% reading+50) ft/m (feet per minute): 78~5900 (2.0% reading+5) km/h (kilometer per hour): 1.4~108.0 (2.0% reading+50) mile/h(mile per hour): 0.9~67.20 (2.0% reading+5) Knots(nautical miles per hour): 0.8~58.0 (2.0% reading+50) ft/s(feet peer second):1.30~98.50(2.0% reading+50) Air Flow:CFM: 0 to 99990 0 to 9.999ft2 CMM: 0 to 99990 0 to 9.999m2 CMS: 0 to 9999 0 - 9.999 m2 Flow Area Setting MAX/MIN Function Display Back light Auto Power Off Low Battery indication Power supply: 9V6F22 Battery(Not Included) Size: (L*W*H)17.20*8.80*4.50cm/6.77"*3.46"*1.77" Quantity:1 Set Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1pc * HYELEC MS6252A Multifunction Digital Anemometer 1pc * English Manual 1pc * Canvas bag