Wind speed in mph, Km/h, m/s, ft/min or Knots Beaufort wind scale bar graph Wind chill display Temperature display in degrees Fahrenheit or Celsius Comfort level LED backlight Wind Speed HOLD feature Low battery display Neck lanyard included Tripod mount (tripod optional) Specifications: Temperature Range: -28 to 138.2 °F (-29.9°C to +59°C) Temperature Accuracy: +/- 2 °F (1 °C) Temperature Resolution: 0.2 °F (0.1 °C) Wind Speed: 0.4 mph to 67 mph Wind Speed Accuracy: +/- 3% Wind Speed Resolution: 0.1 mph Other Specifications: Wind Speed Update Interval: 1 second Wind Speed Average Interval: 2 to 10 seconds (adjustable) Temperature Interval: 10 seconds Power Source: 1 x 3V lithium cell (CR2032) Battery Life: About 1 year Dimensions (L x W x H): 2” x 0.7” x 5.5” (50 x 18 x 140 mm)