The Research Engineers pecision clinometer has been specifically designed
to accurately set the slope angle of PAPI system projectors. It has
a precise longitudinal spirit level with a micrometer type screw adjustment
calibrated in degrees and minutes. Instruments may also be fitted with
an optional cross level.
Needing
no electrical supply, the clinometer is constructed in aluminium and
stainless steel, and is supplied in a fitted protective case.
Overall
accuracy of the RE clinometer is better than one minute of arc.