The Evo management system is our entry level into electronic management offering both in vehicle operation or through included RF remote and three sensor digital gauge allowing for easy access to vital air pressure information (front, rear and tank).with LCD display, user defined font and background colors, high/low pressure alerts and voltmeter. Includes all parts necessary for complete air suspension install when paired with TruHart Air Struts.Kit Includes:DUAL ELECTRONIC SWITCHES WITH THREE PRESSURE GAUGE4 SOLENOID VALVE BLOCKTHREE PRESSURE SENSORSFOUR BUTTON RF REMOTE (FRONT UP, FRONT DOWN, REAR UP, REAR DOWN) WITH 150 FT RANGEBRUSHED ALUMINUM 4 GALLON SPECIALTY SUSPENSION SEAMLESS TANK WITH BASEBOARDCHROME VIAIR 444CSMC WATER TRAP60' DOT 1/4" AIR LINE150-175 PSI PRESSURE SWITCHALL NECESSARY FITTINGS, POWER CABLES AND PLUGS