Meter for amps

[davidz71]

I'm curious about amperage draw from my factory overhead lights, numerous light fixtures the previous owners added, reading lights in the front of my 31' Excella, lights by the single twin curbside bed, the 3 ceiling fans in addition to two small fans mounted underneath overhead compartments. While I see movement of the ammeter gauge in the control panel, can I mount a small meter with a finer (more sensative) scale right off the fusebox where the 2 wires connect and go to the control panel? My Excella has a front cradenza with a Flexsteel couch on the curbside. The cradenza tambour doors slide open to expose the fusebox behind a fold down panel. Craig