Auto Meter 4352 Ultra-Lite Electric Oil Pressure Gauge Traditional incandescent lighting illuminates around the perimeter of the dial Gauge kit includes 1/8 NPT stainless steel pressure transducer, 1/4" NPT adapter, wiring harness, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system Acquire data for later review with one-touch Peak Recall functionality Set a custom alert specific to your vehicle & receive warning notification to highlight the need for driver attention