@freemo I'd recommend a $250 DMM. My $100 dollar Harbor Freight meter was just as accurate and more feature rich than my father's Fluke.
@AmpBenzScientist The high-end fluke I have will be significantly more accurate than the 100$ meter on RMS (cheap meters dont do true RMS) but on other settings the increased accuracy wont matter much. The nice features of the higher end flukes are things like logging and graphing as well as being able to measure inductance and capacitance.
@freemo We were just measuring dwell on the power supplied by a generator during a storm.