Pitot tube type speedometers operate by pressure from the water being forced into the pitot tube. This pressure is then transmitted through flexible tubing to the bourdon tube movement inside the speedometer head where it is converted into a speed reading by the movement mechanism. Mechanical, Electronic, Pressure (Pitot) types available.
Wide range of speeds
Rugged, Reliable construction
4″ – Hole size: 3.375″ (85mm)
Designed for quick and simple installation