Auto Meter 4376 Ultra-Lite Electric Boost/Vacuum Gauge Traditional incandescent lighting illuminates around the perimeter of the dial Includes data acquisition grade solid-state MAP Sensor, providing unmatched accuracy and durability even in the harshest environments Gauge kit includes MAP Sensor, T-Fitting, nylon tubing, vacuum fittings, wiring harness, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation 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