Blue Sea Systems Product no. 8017 DC Analog Ammeter - 2-3/4" Face, 0-100 Amperes DC Simple 2-wire connection from shunt - no other power required Meter senses and powers from shunt connection Includes DC shunt Meter Current: 1 Milliampere at full scale External Shunt Type: 50 Millivolt at meter full scale Weight Lb (Kg): 0.54 (0.24)