Especially as we modify our Cummins with rail pressure boxes, such as the TS MP-8, put on larger CP3's, or dual CP3's, it becomes vital to monitor rail pressure to ensure we are not creating excessive pressure, but also to ensure we're not simply creating enough. If you have too little, there can be issues with hard starts and especially lack of power, where too much pressure can severely damage your costly injectors. This simple to install gauge plugs in-line with the factory rail pressure sensor, so there's no need to splice into the factory harness.
EV² electronic gauges also include an integral programmable warning light, which may be activated if you select the checkbox above to add the programmer tool. The programmer can also be used to adjust the backlighting curve to perfectly match the factory dash lights, and can also adjust the amount of signal filtering/smoothing that the software performs.
*NOTE: Images may not show the exact gauge, but they do show the correct R39000-Style.