8022 DC Analog Ammeter - 2-3/4 Face, 0-50 AMP DCShunt Type: ExternalFeatures:. Simple 2-wire connection. Meter Senses Powers from same connection. Includes DC shunt. Backlit meter face. 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.