Vintage Synth Repair

Hi, I'm new to the group. Working on a Korg Polysix. I need a decent
multimeter for checking the filter cutoff voltage pot. It's -5V to
+5V. I've tried to research some Fluke meters but they don't discuss
negative voltages in the docs. An EE friend suggested a decent digital
type should work but he didn't have any specifics-(ASICs designer).
Can anyone tell me if a Fluke model 175 has this capability? Or any
other model for $200. USD or less.

many thanks,

dizz