ClinometerThe Silva Clinometer is a popular clinometer for all types of vehicles. It has two scales, one 35 and a fine tuning scale 5. The Silva Clinometer is used for checking the heeling angle on sailing boats and for the power trim check on powerboats. It is also a perfect working instrument for other applications, such as making sure that different vehicles and equipment sits level or keep the desired a angle. For angles up to 5, read the top precise scale,