A good at least 400A clamp style clamp type multi-meter that does ohms, Hz,
Voltage in DC and AC is a really good investiment at this
point.
Primary concerns are accuracy, peak hold and it being able to say fit around a 4/0 cable in many won't. Balance that with price and yes you do probably need true
RMS though certifications of this can probably not be needed.
Bonus on this would be a good Fluke set of alternate to what comes with the
meter (your spare) set of bananna clips with alternate type alagator,
insulation pericing jaw and clamp jaw type probes that are easily interchangable. Nothing like the ability to clamp to say a screw in not having to hold the probe on that screw while concentrating on what you are testing. This much less other even in general probes that are slightly larger in better finding contact within even an
Edison outlet. Double ended Banana clip cables with lots of options in probe type is a good thing that makes testing gear much easier.
Used one alagator clip today to clamp to a screw on the
breaker, a wide probe to clamp or touch various other points in figuring out that I had a bad indicator light on a AC
distro, no somehing miswired or not connected. Having options available for clamping to what you wish as replacement probe is a good thing also option of wider probes so they are easier to touch the contacts within a
plug. This beyond while for like $300.00 I got a true
RMS multi-meter that's accurate and does amps in clamp style also, it has paid off also in something I use that does what I need of it with accuracy. Good clamp style multi-meter a good next buy.
First the good quality multi-meter that's clamp Amp style, than the interchangable probes that help easier figure out what is wrong in clamping or probing and there is at least four different clip or probe styles out there that is useful.
Thinking such a multi
meter would be a good buy next in goal.