The Meter Interface (MI) accepts inputs from external AC and DC power metering sensors such as AC and DC voltage and amps, AC kilowatts, and DC battery capacity in amp hours and % remaining. All with user definable high and low alarms. AC 3 x AC voltage inputs (multi voltage) 2 x AC current inputs Calculates true RMS power DC 3 x DC voltage inputs (multi voltage) 2 x DC current inputs Calculates battery capacity as ampere hours and percentage charge remaining for two battery banks Resolution for current metering down to 0.1A General Dimensions, WxHxD 156 x 100 x 42mm IPX5 water ingress protection Outputs standard NMEA2000 power monitoring sentences Accessories 112888 AC voltage transducer 112886 AC current transformer 112887 Heavy duty AC current transducer 113457 DC shunt