That is not likely your best tool for checking wall receptacles. A
small one use plug in tool is likely to be better.
In any case. be careful. It would not be difficult to injure yourself
You need to set the meter to AC and if it has ranges make sure the range
includes 100 - 250V. Next make contact with the leads to each side of the
spades (the two long skinny sockets) you should get about 120V. You still
will not know if there are any poor connections however. Next check each
spade to the ground connection (the small round one) You should get one 0V
and one about 120V.
With most modern meters you are likely to get a reading where you would
think it would be 0V because they are very sensitive. You may also get a
reading, often 10-40V where you would expect 120 when you don't have any
connection. These , safety and other reasons are why I suggest a standard
outlet tester may be better, unless you really understand what is going on.
Joseph E. Meehan
26 + 6 = 1 It's Irish Math
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