CFR series instruments bring a new level of design, technology and features to the aftermarket. Exotic muscle graphics incorporating textures and colors in a way that says high-class, high tech and performance all at the same time. Textured inner dial wit colored accents and bold numbers will make your dash stand out. Great for any resto-mod or pro-touring build. Topped with waterproof lenses and stainless bezels, the CFR series is sure to get your attention while monitoring vital components. Any build that demands exotic, high tech design will set the bar for dash design with the CFR series instruments. Air-Fuel ratio GENII gauges from NVU feature an LED backlit full-sweep analog readout of your AFR. ARF readings from 10:1 to 18:1 with 14 straight up make monitoring your mixture at a glance a breeze. Gauge operates from any controller or PCM output. Input ranges are user selectable :0-5V, .5-4.5V.