Faria Chesapeake White SS 4" Tachometer w/Systemcheck Indicator - 7000 RPM (Gas) (Johnson/Evinrude Outboard) [33850] Mako Secure your compatible echoMAP™ with

Secure your compatible echoMAP™ with this mount

stored in non-volatile memory

4" - Hole Size: 3

DC Digital Voltmeter w/ Alarm

Faria Chesapeake White SS 4" Tachometer w/Systemcheck Indicator - 7000 RPM (Gas) (Johnson/Evinrude Outboard) [33850] Mako Secure your compatible echoMAP™ withChesapeake White SS 4" Tachometer w Systemcheck Indicator 7000 RPM (Gas Johnson Evinrude Outboard) Perimeter lighted White dial with stylish Blue and White graphics, polished stainless steel bezel, contoured White pointer and domed glass lens. Tachometers work by counting pulses generated by the ignition system, alternator, tach signal generator or magnetic pickup sender. The tach is hooked up to +12VDC, Ground and one of the signal sources listed. By