Brand Name:   LIZHI
LZ816 Mini Waterproof Handheld Anemometer
advantage:

1.ultrasonic moulding have waterproof effect.
2.units can choose by you need
3.Auto power off
4.LCD back light
5.Temperature and wind speed double function display.

Electronic Anemometer Features:

1.Wind speed measure in mph.ft/min,Km/h,m/s or Knots
2.Wind speed in Beaufort wind scale bar graph
3.Wind chill display
4.Temperature display in Celsius or Fahrenheit
5.LCD back light
6.Auto Power OFF
7.Neck bank included
8.3V lithium battery operation
9. apprived CE certification .