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4.2
AC Voltage Checker
The AC Voltage Checker is a pen sized tester used to quickly verify if AC voltage is present without
having to make an electrical connection.
AC Voltage Checkers come in many shapes and sizes, but the most common looks like this one:
The checker can be held in one hand and as it comes close to an AC voltage it will light up and sounds
a beep if the checker has that function.
Safely Using the Voltage Checker-
Never use any checker that is damaged
Never check for voltages if it is raining or you are standing in water.
Always verify if your checker is good by verifying against a known AC power source.
Never use both hands to check for a voltage, The other hand should be behind your back.
Always replace batteries and fuses with those specified by the manufacturer.
If your Checker gets wet, DO NOT USE IT!!
As the yellow tip is passed close to
a wire with AC power applied the
tip will light and a sound may be
heard.
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