The Gravit-gauge HIPPO is a compact magnetic level indicator that can be installed onto gas over oil valve actuators such as a the popular Shafer Rotary Vane Actuator. The gauge allows operators to easily identify oil levels in the actuator tanks. This helps ensure continuous, safe, and reliable operation without the need for a dip stick or a site glass.  The Gavit-Gauge HIPPO is the only magnetic level indicator specifically designed for pipeline and midstream applications. The gauge is simple, compact, and cost effective.