Protmex Digital Anemometer, MS6252A Handheld Wind Speed Meter Gauge Air Volume Meter Air Velocity Measuring Flow Meter Backlight Protmex Portable Digital Anemometer: This meter is a portable, professional wind speed measuring instrument with large-screen LCD and backlight, multi-unit switching functions which Wind Speed Range: 0.80~30.0m/s and Accuracy of Wind Speed: 0.01m/s Protmex digital anemometer provides fast measurement for analysis of critical environment conditions. Functions: With LCD screen, flow area setting, Max/Min, Auto power off, backlight and low battery indicator functions Widely Used: This Digital wind speed meter is a Ideal instrument for windsurfing, sailing, fishing, kite flying and mountaineering, etc. And it can also be used for industrial and home purpose such as measuring wind speed of CPU computer fans, air conditioners, air blowers, etc. Wind Speed, and air volume in one LCD display: Digital Anemometer Handheld measure wind speed in 6 units: m/s, ft/s, ft/m, km/h, mile/h, Knots This Meter is a digital anemometer for measuring wind speed, and air volume. 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. m/s (meter per second): 0.80~30.0 (2.0% reading + 50) ft/s(feet per second): 1.3-98.5(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 to 9.999 m 1*DIGITAL ANEMOMETER METER 1*User Manual Flow Area Setting: MAX/MIN Function: Display Back light: Auto Power Off: Low Battery indication: Power Supply: l x 9V 6F22(Battery not include) Product Size: 165mm x 85mm x 38mm (6.5&#034; x 3.3&#034; x1.5&#034;) Product Weight: 200 g ( 0 .41b) Category: CE Packing weight: 420g Packing size: 200*111*36mm Its applied to windsurfing, sailing, fishing, mountaineering, kite flying, shooting, model plane flying etc outdoor activities. Can be widely uased for outdoor(such as riding), for measuring the wind speed and air volume It also appropriate for industrial and family use, normally in conjunction with dust and fume extraction devices, heating and air conditioning systems etc, measuring wind speed andair volume.