GlowShift Elite 10 Color 30 PSI Boost/Vacuum Gauge Kit - Includes Electronic Pressure Sensor - Black Dial - Tinted Lens - Peak Recall Function - For Car & Truck - 2-1/16" 52mm 2 1/16 Inch (52mm) Black Face Gauge with a Magnified Tinted Lens Boost Reading from 0 to 30PSI & Vacuum and Compression Levels Between -30 to 0HG Peak Recall Ability & Audible/Visual Programmable High and Low Warnings 10 Color LED Through Dial Lighting with Color Recall Ability & Dimmer Wire Allows the Gauge to Dim 30% Mounting Hardware, Installation Instructions, Free Lifetime Technical Support, & One Year Limited Warranty