The series 51 tach offers a lot of functions normally found on higher priced tachs.

5 inch display, Recall to review highest RPM attained, Backlite color is user selectable, Shift Set Point has Three alarm presentations.

External Shift Light Flashes and it can be removed for a cleaner look.
Backlite Flashes alternately from pre-set color to RED
Audible Alarm makes Beeping sound.

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