7 user selectable colors (blue white red green cyan violet and yellow) to match visual preferences of driver and visibility conditions. Built-in Pro-Control circuits with custom programmable activation &. deactivation points for key functions like lights fans switches &. pumps allow drivers to focus on the competition while the gauges control key vehicle systems. Set custom alert High and Low points specific to your vehicle &. receive full dial warning notification to highlight the need for driver attention. Acquire data for later review with one-touch Peak Recall functionality. Data logger 0-5V output provides ECU and data systems with vital information. Gauge kit includes 1/8" NPT stainless steel pressure transducer 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. Autometers Race Proven Digital Stepper Motor Electric Instruments Provide Unmatched Accuracy Which Is Further Increased By Utilizing A Self Calibration Sequence During Power Up