What to look for in a multimeter and how to use a multimeter to measure voltage, current, resistance and continuity.
Recommended multimeter: http://www.amazon.com/exec/obidos/ASIN/B0050LVFS0/afromods-20
High quality electrician grade multimeter: http://www.amazon.com/exec/obidos/ASIN/B000OCFFMW/afromods-20
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