You're looking at the Revel VLS Oil Pressure Gauge. An oil pressure gauge can be on of the more important and crucial gauges in your vehicle because if your vehicle is operating under low oil pressure then it could be something minor or major. However, it is imperative that you figure out what the culprit of the problem is before you create any serious internal damage to your engine.
Revel gauges feature an Organic Light Emitting Diode which when compared to your typical LCD display, the OLED display provides a sharper contrast which results in a deeper black display to provide a more clear image that is more reader friendly at a quick glance. This technology also allows for undistorted viewing angles approaching 170 degrees. This technology also does not require a backlight to be clearly visible at night which also allows for a slim profile of the gauge.
This is a 52MM gauge that will come provided with a sensor, all of the required wiring for operation, along with a gauge cup, gauge hood, and miscellaneous hardware to make this gauge ready for installation.