Could be both, for different current ranges?
I think so, too. Why else would you need a precision resistor in that spot?
A few notes about the usability of the meter:
- The bargraf actually displays the range above the major ticks (e.g. 100, 200, 300, 400 or 10, 20, 30, 40), and not "1 2 3 4" with a multiplier on the right side as on the Fluke 87. I like that very much, it reduces confusion when you have peaks of some sort
- The min/max/avg functions are a bit odd to use, one should really read the manual, especially on the timed min/max function
- You can specify a low/high event trigger for voltage as well as counting zero crossings
- It has a signal generator which has an amplitude of 3V and a frequency between 1 and 1000Hz. It's possible to configure delays between the pulses. Not sure if this could come in handy some day…
- The continuity tester is not the fastest, but also isn't slow (about half as quick as the Fluke 87 one), but it's possible to configure the resistance when to trigger the beeper
- The data hold function is a bit slow, it needs a relatively stable measurement for 2 seconds
So far I can highly recommend that MetraHit meter, and it certainly plays one league above the Fluke 87.