Maestro Wind Speed & Direction Monitor, Brass Case & Silver Dial Maestro displays wind speed, wind direction and highest gust up to 100 MPH (and 160 km/h) Wind speed is self-powered by rooftop sensor Wind direction is displayed across 16 compass points using LED's which run off the supplied AC power pack Highest gust is saved on our unique Gust Register, which allows you to monitor highest gusts even when you missed the actual wind blast Ships complete with 60' cables, AC adapter, sensors and mounting hardware