Faria Chesapeake Black SS 4" Tachometer w/Systemcheck Indicator - 7000 RPM (Gas) f/ Johnson / Evinrude Outboard) [33750] Brand_Ritchie Tx:Rx: Stand-by duty ratio =

Tx:Rx: Stand-by duty ratio = 5:5:90

When connected with the second-station handset

Compact 6" x 4" x 1-1/2" (15 x 10 x 4 cm)

Pre-wired cable connection points

Faria Chesapeake Black SS 4" Tachometer w/Systemcheck Indicator - 7000 RPM (Gas) f/ Johnson / Evinrude Outboard) [33750] Brand_Ritchie Tx:Rx: Stand-by duty ratio =Chesapeake Black SS 4" Tachometer w Systemcheck Indicator 7000 RPM (Gas) (Johnson Evinrude Outboard) Perimeter lighted Black 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.