Wind WizardReads wind speed in miles/hour meters/second and Beaufort, Readout dial is supported on sapphire jewel bearings and steadied by a rare earth magnetic dampening system, Folding handle quickly and securely latches into place, No batteries needed, Dimensions: 3-5/8"" 2-7/8"" 1"" (92 73 25 mm) with handle folded, Weight: 2, 5 oz (71 g), Measures wind speed from 0 - 60 mph, Product : DAVIS WIND WIZARD MECHANICAL WIND SPEED INDICATOR 0-60 MPH Manufacturer : DAVIS INSTRUMENT Manufacturer Part No : 281 UPC : 011698028108 SKU: CW31948