Both the 7 Color Series and Elite 10 Color Series offer gauges featuring stepper motor technology for an incredibly accurate reading. The 7 Color Series offers 7 solid colors and 2 color cycle modes while the Elite 10 Color Series offers 10 solid colors with 2 color cycle modes. Both Series have a color-changing button on the face of the gauge, while the Elite also features a Peak Recall button with adjustable high and low warnings. The Elite 10 Color Series all feature electronic sending units, while the 7 Color series Boost gauges are mechanical. Both Series also have a dimmer wire that allows the gauge to dim 30%.