Anemometer Digital Anemometer Wind Air Volume Measuring Instrumen for hiking Specification: Condition: 100% Brand New Item Type: Anemometer Material: ABS Model: PM6252B M/s (Meter per Second): 0.80~30.00 ?(2.0% reading + 50 characters) Ft/m (Feet per Minute): 78~5900 ?(2.0% reading + 5 characters) Ft/s (Feet per Second): 1.30~98.50 ?(2.0% reading + 50 characters) Km/h (Kilometer per Hour): 1.40~108.00 ?(2.0% reading + 50 characters) Mile/h (Miles per Hour): 0.90~67.20 ?(2.0% reading + 5 characters) Knot (Nautical Miles per Hour): 0.8~58.30 ?(2.0% reading + 50 characters) Air Temperature: -10~60 degrees Celsius ?1.5 degrees Celsius /-14~140? ?2.7? Air Relative Humidity: (20~80)%RH ?3%RH at 25 degrees Celsius / (<20 or >80)%RH ?5%RH at 25 degrees Celsius Resolution: 0.01m/s; 1ft/m; 0.01knots; 0.01km/h; 0.01ft/s, 0.1 degrees Celsius /0.1?, 0.1%RH CFM: 0 to 99990/0 to 9.999ft? CMM: 0 to 99990/0 to 9.999ft? CMS: 0 to 9999/0 to 9.999m? Work Height: Maximum 2000m / 6561.7ft Work Mode: Frequency of wind speed conversion Display: LCD Maximum Show Value: 9999 Sampling Time: About 0.4s/time Area Setting: Yes Maximum/Minimum Function: Yes Display Backlight: Yes Auto Power Off: Yes degrees Celsius /? Selection: Yes Ambient, Dew Point and Wet Temperature Selection and Bulb: Yes Low Battery Indication: Yes USB Interface: Yes Power Supply: 1 x 9V 6F22 Battery (Not Included) Operation Environment: 0 degrees Celsius -40 degrees Celsius , 0-85%RH (no moisture condensation) Detector (Fan) Operation Environment: -20 degrees Celsius -80 degrees Celsius , 0-95%RH (no moisture condensation) Storage Environment: -10 degrees Celsius -50 degrees Celsius , 0-80%RH (no moisture condensation) Wind Speed Unit Switchable: m/s, km/h, /h, ft/m, ft/s or knots Area Unit Switchable: m?, ft? Temperature Unit Switchable: Celsius( degrees Celsius ) or Fahrenheit(?) Air Volume Unit Switchable: CMS, CMM, CFM Product Size: Approx. 170 x 86 x 39 mm / 6.7 x 3.4 x 1.5 in Weight: Approx. 357g / 12.6oz Package List: 1 x Multifunctional Digital Anemometer (Battery Not Included) 1 x Portable Bag 1 x CD 1 x USB Cable 1 x English User Manual