Portable digital wind meter: low-power design, LCD display, high sensitivity, fast speed. Can simultaneously measure the instantaneous wind speed, instantaneous wind levels, average speed, average wind level, corresponding to waves and other five parameters. Has a data latch function, easy to read, while indicating measuring wind speed and direction. Handheld wind instrument small size, light weight, full-featured, low power consumption, can be widely used in agriculture, forestry, environment, marine, scientific investigation, education and other meteorological parameters of atmospheric wind measurement handheld wind instrument works: 1) Instruments will be converted into an electrical signal wind speed of rotation of the cup, which consists of internal microcomputer electrical sampling, calibration, computation, and finally the instantaneous wind speed, one-minute average wind speed, instantaneous wind levels, one-minute average wind levels and their corresponding Wave height five parameters in digital form is displayed on the right side of the LCD. 2) indicate wind direction to the geomagnetic guide prevail, when used in a horizontal position to the wind vane effect by the pointer was measured by the wind. 1, the wind speed technical indicators measuring range 0 ~ 30m / s wind speed start 0.8m / s Accuracy ± (0.3 + 0.03v) m / s (v indicate wind speed) wind speed parameters instantaneous wind speed, average speed, instantaneous wind levels, average wind scale and their corresponding wave display resolution 0.1m / s (wind speed) 1 (Wind Scale) 0.1m (wave) 2, wind technical indicators measuring range from 0 to 360 degrees, 16 position starting wind speed 1.0m / s measurement Accuracy ± 1/2 position north winds set Auto 3, the working environment temperature? ° -10 ~ 45 ° C wet? degree ≦ 100% RH (non-condensing) 6, No. 3 4.5V5 battery power supply 7, the size and weight scale ? inch 410x100x100mm3 weight? amount 0.5kg