Equus 7068 3-3/8" Tachometer, Chrome with Black Dial Works on vehicles with conventional, electronic, and distributorless ignition systems Can be calibrated to work with 4, 6, and 8 cylinder engines and outboards Chrome bezel and black dial with Domelux lens 0 to 8000 RPM scale in 100 RPM increments Offers two installation options, including hardware and inductive pickup