To avoid electric shock, when performing resistance measurements, first turn off the power to the
device under test (Disconnect the battery/unplug the power cord) and discharge the capacitor in the
power supply.
1. Insert the connecting plug of the black test probe into the
negative COM jack;
Insert the connecting plug of the red test probe into the
positive resistance Ω jack.
2. Connect a test probe to the circuit or component under test.
Disconnect one end of the component to be tested from the
original line to ensure that the rest of the circuit does not
affect the correctness of the reading.
3. Read the resistance value, unit and decimal point displayed
on the meter.
Diagram of resistance measurement
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