Powered by digital, microprocessor-controlled, rugged stepper motor drives and laboratory-grade sending units, Full Sweep Electric Gauges are the BEST gauges available. Extreme durability and readability of 270-degree sweep mechanical gauges is combined with easy installation and safe operation of short sweep electrics. Track tested and race proven, these units employ precision senders to keep hazardous fluids out of the driver compartment and to perform gauge calibration and sensor diagnostics at power-up for extreme accuracy every time. Most units are compatible with Auto Meter Data Logger, for the ultimate race info center.