The Sola Clinometer (ARISTO) is made in Austria with their typical engineering perfection. The Sola is magnetically attached to a drill rig or any machine where the operator has to know the angle of inclination.
Reading of the angle to 15 minutes.
Can also be read in percentage.
4 x 90o = 360o
The Sola comes in two different sizes to suite most requirements.
Have you seen out electronic clinometers from Haglof?