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The TriMetric requires an external 100 amp or 500 amp shunt to measure amps and amp-hours.
Battery Amps: Measures amps into and out of battery, accurate to ±1%±1 least significant digit. Or the meter may be set up to measure only incoming amps from solar array or other energy source, or only load amps if desired. Resolution and maximum amps depends on choice of shunt. With the 100A/100mV shunt: measures 0.01 to 100 amps. With 500A/50mV shunt: measures from 0.1 to 500 amps. Shunt type is programmable, so amps always display correctly. Speed of response one second time constant.
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