Profile: GEMS / General Engine Management Systems specializes in engine management, transmission control, data acquisition and in car display systems. Our product line includes dash display, engine management & diff control systems and vata logger. Our LDS4 - OLED driver display features an ultra clear AMOLED display technology with a viewable in direct sunlight. Our DA37 is Gems™ latest entry level display. With a large, clear black and white display and 8 customizable pages, it provides a highly powerful yet cost effective dash display for use in all types of motor sports. Our DA37 display features a 14 gauge types including Tachos, bars and warning text. It features a 8 fully customizable pages, high contrast 5.5 inch display, 8 fully customizable pages with CAN and serial inputs.