Dimensions: 4.8" x 1.9" x 1.1". Pack weight: 3.6oz. Wind speed, temperature, and humidity meter. Calculates relative humidity, heat index, wind chill, dew point, and wind speed. Data hold feature. Three button control. Waterproof and impact resistant. Floats. High contrast, sunlight readable monochrome LCD display. Blacklight blue light. Hard slip-on protective cover. Cord lanyard. Color: Red. Boxed.