If you race sailboats, the benefits of an
accurate speedometer are probably already fairly obvious to you. Even
still, you might not sail with a speedo because you you don't want to
drill holes in your hull and wire-up a paddlewheel transducer.
Or maybe you already have a through-hull
speedo but you’re sick of the transducer getting fouled and you’re never
quite sure if the instrument is properly calibrated.
The award winning SpeedPuck is completely
self contained and can be installed in seconds, without tools. Instead
of using a paddlewheel, the SpeedPuck calculates your speed by measuring
the Doppler shift in GPS signals to provide you with an updated reading
twice a second. The SpeedPuck never needs to be calibrated and maintains
uniform accuracy at all speeds.