Evo Series 52mm (2 1/16") Green/White A new Evolution in digital gauges Introducing the 4 time award wining, (SEMA show 2010) industry first, dual color digital gauge. This gauge has a Black bezel, Black case and is Blacked out when off. This one gauge can display either Green or White and is dimmable ! A 270° dial sweep provides quick one glance accuracy. Track tested and race proven these gauges use precision electric senders (Included) to keep hazardous fluids out of the passenger compartment. All of our Evo Series gauges perform a dramatic opening ceremony with a full digital sweep each time the vehicle is turned on. These gauges are very thin, perfect for tight mounting options Only 1.5" deep including the studs If your vehicle is supercharged or turbocharged then this gauge is simply a must have. For peak performance you need to know how much boost you are making at maximum RPM's. Now you can accurately monitor your boost as you modify your ride! This Electric Boost Gauge will perform a digital sweep, on Start-up. (-30vac to 35 PSI includes Mounting hardware, Tubing Kit, T-Adaptor, Electrical sender, and Instructions)