Places to use the meter…
No Tone Generator? Check wires by twisting one end. Measure continuity.
Measure N/O or N/C connection on relays, contacts, switches
Check amperage vs. known values (Manufacturers Spec.)
Checking common solenoid/motor resistance values for anomaly. (Measure resistance of matching hardware.)
Check Batteries 12v, 9v, AA – AAA (1.5v)
These are just some of the applications for using a meter.