Features: The anemometer uses an LCD digital display and is ideal for weather enthusiasts or professionals to accurately measure wind rate. Hand-held design, small size, light weight, no space, easy to carry around. It can perform accurate weather measurements in seconds, easy to use. Some functions include: wind speed, temperature measurement, wind speed unit selection function, °C / °F unit conversion function, maximum/minimum wind speed measurement, wind cold index prompt function, automatic shutdown(no button operation, automatic shutdown for 10 minutes). It has communication function, can used with USB(cooperate with computer applications) and bluetooth(cooperate with mobile phone APP). Specification: Condition: 100% Brand New Item Type: Digital Anemometer Material: ABS Color: As shown in the picture I tem D escription Measuring project Wind speed (air speed), air temperature Air flow rate range 0~30m / s, 0~90km / h, 0~5860ft / min, 0~55knots, 0~65mph Accuracy of air flow rate ±5% T emperature range -10-45℃（14-113℉） Temperature accuracy ±2C（3.6F） Air velocity resolution 0.1m / s, 0.2C Battery 9V battery (Not included) T hermometer NTC thermometer O perating temperature -10-45C（14-113F） O perating humidity Relative humidity is less than 90% S torage temperature -40~ + 60（-40 F~140F） C urrent consumption 3 mA Weight 52 g/1.8oz Package List: 1 x Handheld Anemometer 1 x Lanyard 1 x USB Cable 1 x Instruction Manual