Product Specification: The wind speed range of this wind thermometer is 0-30m/s, 0-5860ft/min, 0-55knots, 0-90km/h, 0-65mph. Resolution: 0.1m/s, 19ft/min, 0.2knots, 0.3km/h, 0.2mph. Temperature range: -10~45°C. This portable anemometer is a practical instrument for measuring wind speed and temperature. The anemometer has an LCD display with backlight for easy reading. This wind speed meter is an ideal tool for measuring air velocity in various settings. You can also use the portable wind speed anemometer for industrial and domestic purposes such as measuring airflow speed and temperature. The wind speed unit can be switched: m/s, km/h, ft/min, knots and mph. With wind vane and wind chill indicator. The temperature unit can be switched: degrees centigrade (°C) and degrees Fahrenheit (°F). Features include maximum, minimum and average measurement functions. Material: ABS. Power Supply: 9V battery (not included). Package List: 1 Anemometer, 1 Cloth Bag, 1 Manual, 1 Hand Rope. Color: Black. Size: 165x85x39mm.