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AC Voltage Measurements
Warning:
RISK OF ELECTROCUTION. THE PROBE TIPS MAY NOT BE
LONG ENOUGH TO CONTACT THE LIVE PARTS INSIDE
SOME 240V OUTLETS FOR APPLIANCES BECAUSE THE
CONTACTS ARE RECESSED DEEP IN THE OUTLETS. AS A
RESULT, THE READING MAY SHOW 0 VOLTS WHEN THE
OUTLET ACTUALLY HAS VOLTAGE ON IT. MAKE SURE THE
PROBE TIPS ARE TOUCHING THE METAL CONTACTS
INSIDE THE OUTLET BEFORE ASSUMING THAT NO
VOLTAGE IS PRESENT.