Gravity Position Indicator is a regulating device. It consists of a balance weight mounted on a spindle. Mounted on the weights are several gears. By rotating the gravity position indicator, the spindle also rotates, the rotational movement is transferred through the gears mounted on the weights to the pointers. These indicators can be used on control spindles with positions ranging from horizontal to 60 degrees inclined. The movement is housed in a sealed case.
Gravity Indicators are most accurate when used on horizontal control spindle, the precision decreases as the incline increases.