1.Small and Mini Portable: With a compact body, you can easily hold it in your hand and put it in your pocket, making it easy to carry and test anytime, anywhere 2.High precision and fast response: High precision wind speed sensor with accuracy within ± 5% RGD ± 0.1, resolution of 0.1M/s, accurate and fast 3.Environmental temperature measurement: Equipped with environmental temperature sensing function, maintaining stable performance in environments ranging from 0 ℃ to 50 ℃, fearless of various testing environments 4.Simple operation and precise measurement 5.Widely used: environmental wind speed detection, fan manufacturing wind speed detection, wind speed detection, navigation wind speed detection, pipeline ventilation system wind speed detection, factory workshop wind speed detection, etc Wind speed measurement range: 0.3-30m/s Wind speed measurement error: ± 5%+0.1dgt Wind speed unit selection: m/s, Ft/min, Knots km/h, Mph Maximum/minimum measurement: Yes Probe rotation: 180 degrees Wind temperature measurement: 0-50 ℃ Temperature error: ± 2 ℃ ° C/Lower Unit Conversion: Yes Backlight display: Yes Power monitoring: Yes Low battery prompt: Yes Resolution: 0.1m/s Data retention function: Yes Automatic shutdown function: Yes Automatic shutdown time: 14 minutes without operation Power supply: 3 x1.5AAA battery (shipped without battery) Color: Black Material: ABS Package Contents: 1 x Mini Digital Anemometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.