Chesapeake White SS 4" Tachometer - 7,000 RPM (Gas - All 
Outboards)
	
	4" - Hole size: 3.375" (85mm)
	Electronic tachometers work by counting pulses generated by the ingition 
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 
postion you let the tachometer know how many pulses are sent per each engine 
revolution.
	Benefits:
	- Wide range of scales
	
- Multiple signal sources
	
- Rugged, Reliable construction