Blue Sea 8003 DC Analog Voltmeter - 2-3-4" Face, 8-16 Volts DC 
DC Analog Voltmeter
Backlit meter face
Simple 2-wire connection
Meter Senses Powers from same connection
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.