Overview AutoCross Gray 2 1/8" Full sweep Cylinder Head Temp.;gauge with standard matte-black low step bezel and flat glass lens. See available bezel, lens, and pointer upgrades in the appropriate drop-down menus. Cylinder Head Temperature Gauge,Full Sweep 2 1/8" Diameter Features Configurable LED lighting, with choice of Warm White or Cool White lights Type K thermocouple, with 14mm copper lug and 10ft. stainles steel braided wire, included Integrated red warning light, illuminates entire gauge red when activated Completely electric Small 2 1/8" hole size A singleconnection wire harness Microprocessor technology for precision Full sweep provides increased accuracy Rugged air core movement for durability Push button calibration Thermocouple amplifier included .5 - 4.5VDC analog datalogging output Warning light output for additional warning indicator lights