PEAKMETER Digital Multimeter Anemometer tachometer/Air Volume measuring instrument with backlight multi-unit switching functions

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.
Specifications:
m/s(meter per second): 0.40~30.0 ±(2.0% reading+50)
ft/m  (feet per minute): 80~5900 ±(2.0% reading+50)
km/h (kilometer per hour): 1.4~108.0 ±(2.0% reading+50)
mile/h(mile per hour): 0.9~67.0 ±(2.0% reading+50)
Knots(nautical miles per hour): 0.8~58.0 ±(2.0% reading+50)
CFM: 0 to 99990  0 to 9.999ft2
CMM: 0 to 99990  0 to 9.999ft2
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)
Package size: 19 * 11 * 6cm / 7.6 * 4.4 * 2.4in
Package weight: 300g / 10.5 oz
Package list
1 * PEAKMETER MS6252A Multifunction Digital Anemometer
1 * Portable Bag
1 * English Instructions
Battery(Not Included)