Auto Meter 6527 Ultra-Lite Digital 2-1/16" 0-100 PSI Digital Oil Pressure Gauge Features Auto Meter's E-Z View Digital LED Display System which maximizes readability and minimizes distracting high speed digit changes Includes race-proven pressure transducer, providing unmatched accuracy and durability even in the harshest environments Auto Meters race proven digital stepper motor electric instruments provide unmatched accuracy while keeping hazardous fluids outside of the vehicle Gauge kit includes 1/8 NPT pressure transducer, 1/4" NPT adapter, wiring harness, mounting hardware, and detailed instructions for installation 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system