A good multimeter (or a few of them) is an essential part of anyone’s electronics workbench. The only thing more useful than a multimeter is a logging multimeter that can take recordings over time.

More expensive models have more features, may be autoranging ... you’d have had a completely different set of multimeters pulled out for your inspection. Probably still a handheld brick with ...

In addition to the measurement symbols, one symbol you must always be aware of when using a multimeter is the Ground (GND) ...