Blue Sea Systems Product no. 8253 DC Zero Center Analog Ammeter - 2-3/4" Face, 100-0-100 Amperes DC Meters read both discharge and charge current Simple 2-wire connection from shunt - no other power required Meter senses and powers from shunt connection Includes appropriate DC shunt Meter Current: 50 Milliampere at full scale Weight Lb (Kg): 0.54 (0.24)