Auto Meter Sport-Comp 2-1/16 inch (52.4 millimeter) Short Sweep Electric Fuel Level Gauge (ranges 16 Ohms empty / 158 Ohms full). It features advanced 90 degree air core movements and simple three wire installation that characterize these high performance instruments. Electric sending units keep hazardous fluids in the engine compartment sending collected data through an electrical signal to quick reacting, precise air core movements to give you all the information that you need and nothing that you don’t. Air-Core meter movement.