Best value in handheld wind meters! This unit features Current, Max, and average wind speed (knots, mph, kph, m/sec, f/min, Beaufort). Current temperature (Fahrenheit/Centigrade) and wind-chill. Waterproof/floats/highly visible case. Comes with lanyard and threaded for tripod mount. Accurate to +-3%, Readings to tenths. 3.2 oz. Measures: 5.5 X 1.75 X .75 (closed).