Auto GaugeBy Auto Metercomes from USA brand Auto Meter.Tach reads from 0-10,000 RPM. Works on 4, 6, and 8 cylinder engines with points, electronic ignition, and most 12V high performance racing ignitions like the MSD ignitions. The new Sport Comp II series of gauges is one of the hottest looking and performing instrument in motorsports. Black face, silver bezel, glowing red pointer and "through-the-dial" white LED lighting make them extremly easy to read. Their reverse lighting effect features a black dial with black increments during the day, and a dark dial with an LED-illuminated pointer and increments by night. Autometer's unbeatable quality and engineering provide race proven durability with the latest styles. Features: - Classic Autometer styling. The Sport Comp II gauges are the modern rendering of the classic Sport Comp series of gauges. - Black gauge faces with red pointers and white numbers during the day. - At night the you get a "through-the-dial" white LED lighting with a dark face and a glowing red pointer. They look awesome at night! - Highest quality gauges available! - Silver bezel. - Comes with detailed instructions .