UMA dual ammeter/voltmeters are rugged and reliable instruments for measuring the current within the aircraft's electrical system. or easy of installation, UMA Amp meters use an external shunt to make current measurements. This 2-1/4 inch instrument (EDMO# 15-200-100) is 2-1/4 inch, has a black & white dial with post terminal, measures 0-100A and 0-30V, has a moving coil movement, and 1C4 shunt.
