Faria Beede Instruments 4 in. Chesapeake White Stainless Steel Tachometer with Systemcheck Indicator - 7 - 000 RPM

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 above. By selecting the right tach and setting the switch on the back to the correct position you let the tachometer know how many pulses are sent per each engine revolution. These tachometers have a warning light system built into the dial that show off warning indicators when a fault is detected from the engine.Features 7,000 RPM (Gas - Johnson/Evinrude Outboard) 4 in.Tachometer With Systemcheck Indicator Material - Stainless Steel Color - WhiteSystemCheck® warnings No Oil Engine Overheat Check Engine Low Oil - SKU: CW54644

Chesapeake 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 selecting the right tach and setting the switch on the back to the correct position you let the tachometer know how many pulses are sent per each engine revolution.These tachometers have a warning light system built into the dial that show off warning indicators when a fault is detected from the engine.SystemCheck Warnings: No Oil Engine Overheat Check Engine Low Oil4" - Hole size: 3.375" (85mm)For Engine Types: Johnson/Evinrude OutboardSpecifications: Anti-scratch glass lens Plastic Cases for corrosion resistance and long life 12 VDC negative ground Can be adapted for 24 VDC systemsFactory P/N TC9881*Sold as an Individual**Gauge Cover not Included