Is it time to check how fast your engine is spinning? Your engine can only rev so high before it risks damage. A tachometer helps you make sure your engine is running in a healthy RPM (Revolutions Per Minute) range and not working too hard, giving you a simple way to know if you're accidentally putting extra stress on your engine.
The ISSPRO 3-3/8" Programmable Tachometer is a high-accuracy RPM gauge built for maximum flexibility. It can read RPM signals from nearly any common source, including ignition coils, electronic ignition modules, magnetic sensors, pulse generators, Hall-effect sensors, and alternator AC taps.
This tachometer is extremely versatile thanks to its wide calibration range, from 0.1 pulses per revolution up to 255 pulses per revolution, adjustable in 0.1-pulse increments up to 25.5 PPR. This makes it easy to dial in precise settings for almost any engine and sensor type. You can also view your highest recorded RPM at any time with the built-in recall function. It supports 9–32V systems and is engineered for harsh environments, featuring transient protection up to +100V / -400V. Visibility is excellent with bright, durable LED backlighting, and the large 3-3/8" gauge size ensures easy readability.