Faria Chesapeake Black 4" Tachometer - 4000 RPM (Diesel) and your boat will circle

and your boat will circle the spot while you drop the hammer

a dependable electronic ignition system powered by a single "AAA" battery (included) and a tempered glass viewing window

down the center of the stainless steel arm

Hub to Thruster

Built-in Work Light: Illuminate the boat transom any time of day — or night

Faria Chesapeake Black 4" Tachometer - 4000 RPM (Diesel) and your boat will circleChesapeake Black 4" Tachometer 4000 RPM (Diesel) (Mechanical Takeoff & Var Ratio Alt) Perimeter lighted Black dial with stylish Blue and White graphics, polished stainless steel bezel, contoured white pointer and domed glass lens. Electronic 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