Skymate SM-18

Average wind speed over 5, 10, or 13 seconds Current temp & wind chill Choose any measurement unit Reads in tenths Replaceable 400 hour lithium battery Data lock feature Replaceable plastic impeller won't corrode Easy to read LCD Threaded for tripod mounting Unique pocket-knife design to protect unit when not in use Water resistant to 3 ft High visibility case Floats Specifications ACCURACY: +/- 3% when aligned with wind's axis WIND RANGE: .5-89 MPH TEMPERATURE RANGE: 5 - 122 F (-15 to 50 C) OPTIONAL UNITS: Knots, MPH, KPH, M/Sec, Ft/Min, Beaufort Scale - F or C OPERATING MODES: Current Windspeed - Average over 2 seconds Average Wind - 5,10, or 13 sec - Max Wind - 2 sec gust since power on AUTO SHUTDOWN: After 20 minutes if not done manually POWER: CR2032 Lithium battery (included) MEASURES: 4.8" x 1.8" x .7" WEIGHS: 2.3 ounces with case