This ISSPRO's EV2 (Enhanced Visibility 2) series gauges was specifically designed to match the Generation 3 Dodge RAM trucks. They feature microprocessor-controlled stepper motor full sweep needle movements, LED back lighting and precision senders. At night the through the dial backlighting illuminates the numerals and pointer. Because of their unique design, all EV2 gauges can have their power, ground, and illumination wires daisy-chained together, making installation easier than most other gauges. Founded in 1949, ISSPRO, Inc. is the leader in aftermarket diesel performance instrumentation.