residential refrigerator vs rv gas/electric refrigerator?

the Grape Solar Controller
shows the amps going to the battery
shows the volts from controller to battery when charging
and the battery volts at night

there is NO external shunt
it will NOT read load that is NOT going thru the controller
there are load connections, and it will show that load
but that is limited possible max 40 amps, might be less, need to check the book
for the specs
its not going to read charge from your converter or discharge to a 1000w inverter