Set the multimeter to the correct measurement type: voltage, current, resistance, continuity, or diode
Choose AC or DC mode when measuring voltage or current
Plug the black probe into COM
Plug the red probe into the correct jack for the measurement
Start with the highest range if the meter is not auto-ranging
Touch the probes to the circuit or component terminals
Read the value on the display
For voltage, place probes in parallel with the source or component
For current, open the circuit and place the meter in series
For resistance, disconnect power from the circuit before measuring
For continuity, check for a beep or low resistance reading
For diode testing, place the probes across the diode and note the forward voltage drop
Keep fingers behind the probe guards
Never measure voltage with the meter set to current or resistance
Never measure current directly across a power source
Turn off the meter after use
Remove the probes and store the multimeter safely