Speedtech Skymaster Wind Meter SM 28 is Ranked #1 by Practical Sailor & Powerboats Report, and for good reason. The Speedtech Skymaster Wind Meter SM 28 gives you advanced weather information in a handheld pocket-knife design that is rugged for nearly any use. FEATURES: Wind Speed (Current, Avg, & Max) - Temp w/ Windchill & Heat Index - Relative Humidity w/ Dewpoint - Barometric Pressure & 16-Hr History Bar Graph - Storm Audio Alarm - Altitude - Pocket-knife design - Replaceable 400 hr battery - Replaceable impeller - Tripod compatible - Floats - Water resistant to 4". SPECIFICATIONS: ACCURACY: +/- 3% Windspeed - +/- 2 F° Temp/Windchill - +/-3% rH - +/- 3°F Dew Point - +/- 3°F Heat Index - +/-3 hpa Barometric Pressure - RANGES: Wind .4-89 MPH; Temp 5° to +122°F; Windchill -22° to +158°F; Dew Point -31.2° to +155.8°F ; Heat Index +69.8 to +155.8°F; rH 0-99%; Barometer 400-1100 hpa; Altitude -600 to 9000 meters OPTIONAL UNITS: Knots, MPH, KPH, M/Sec, Ft/Min, Beaufort Scale - F or C; hpa/mb or inHg RESPONSE TIMES: Current Windspeed; Ave. over 2 sec; Ave. Wind 5 sec; Max Wind 2 sec gust; Temp/windchill/rH/dew point 1 min; 15 min sampling Barometer. Includes CR2032 Lithium battery (approx 400 hours). DIMENSIONS: 5.9" x 2.1" x .85" WEIGHt: 3.9 oz. 1 Year Warranty. Usually ships in 1-5 business days. MSRP: $210.00.

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