Autometer Designer 3-3/8in In-Dash Kit Box-Tach Speedo Combo & Elec Oil Press, H2O Temp, Volt, FuelSometimes Space Is Limited. The Autometer Quad Gauge Provides A Solution To Limited Dashboard Space While Providing A Clean Look. Individual Autometer Air Core Meter Movements For Each Function Provide The Accuracy And Durability Required By Even The Most Demanding Applications. Includes A Single Wire 1 8" Npt Temperature Sender And A 1 8" Npt Oil Pressure Sender. The Voltmeter Reads From 8 18V On Negative Ground Electrical Systems And Fuel Level