Dogvane: It receives wind generator signal ,measure and indicate wind direction .It will read the average angle of dogvane every 120s,if the angle degree between dogvane and wind generator axes is more than 10 degree ,the 24V DC generator will drive yaw shaft to seek wind turbines automatically .

Anemometer : measure wind speed ,if the wind speed is over 3m/s continuously within 30s,wind generators direction automatic tracking system will start to make the blades face wind correctly ,if the wind speed is less than 3m/s the system will keep in standby situation .

They are used in 3kw,5kw,10kw,20kw models.