AutoMeter Tachometer Professional Action Replay 125mm Blk 0-8K Rpm

The original and still the best genuinely professional tachometer. This race-proven and award winning design guarantees exceptional accuracy and robustness over many years of use. Stack Professional Tachometers feature RPM recording and on-dial playback, providing up to 25 minutes of RPM history.
Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.