Since 1957, AutoMeter has set the standard in performance, accuracy and durability with their legendary Tachometers. The absolute pinnacle of engineering and technology, it's no wonder AutoMeter can lay claim to more motorsports victories than every other gauge manufacturer combined. This model is designed for the specific needs of competition diesel use, featuring a unique sensor engineered to be mounted near the crank pulley which creates a signal from 4 machined grooves or 4 raised bolt heads to precisely monitor engine speed. The patented air core meter movement, wound in house to exacting standards, can move the needle from 0 - 6,000 rpm in just 333 milliseconds ensuring that you never have to worry that your engine is spinning faster than the tach and includes a built-in memory recall to allow review of the highest RPM achieved on your last pass or hook. Built for a lifetime of service under the harshest conditions, this is the no compromise tach for no compromise builds. When you're ready for the best, there isn't another choice.Features: Traditional incandescent lighting illuminates the front of the dial 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system AutoMeter’s race proven air-core electric tachometers provide quick and accurate readings with a needle so responsive it can go from 0 - full scale in 333 milliseconds Triage engine health and setup changes using Peak RPM Memory recall with one touch review. Commonly referred to as the 'tattle tale' in the racing world, this function allows racers to gain quick insights between rounds about wheel spin, gearing and gear changes. Gauge kit includes magnetic pickup, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation Product Description: 5"Tachometer, 0-6,000 RPM Diesel, Pedestal w/ Peak Memory, Pro-CompPit Stop USA offers Auto Meter Pro-Comp Memory Tachometer - 5" 6806 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Pedestal Memory Tachs.