AC Is proud to bring you a Full Spec Auto Turbo Timer / Voltage Meter for you're turbo vehicle needs. Turbo Timer allows the vehicle to idle the engine for a timed period, with the ignition key removed. This conveniently allows the engine oil and turbo center cartridge to cool down and prevent internal turbo damage. In addition to two standard programmable count down presets (P-1, P-2). Turbo Timer features are auto mode that you adjust one time according to the most recent driving pattern, multiple preset times, and a volt meter. To easy to read LCD display flashes red during the countdown, blue light on voltage meter. The turbo timer is ultra compact, less then a 1/4 din in size.