Measure wind speed and temperature. High precision pressure sensor. * Wind speed range: 0-30m/s. Wind speed unit: m/s, Km/h, ft/min, Knots, mph. * Current/max/average wind speed reading. Temperature display in ℃/F. * Wind temperature range: -10 - 45°C (14-113°F) Large easy-to-read LCD display with backlight. * Auto/manual power off. Powered by a 3V CR2032 battery(not included)