KEY FEATURES
• Redundant indications (beeper sounds and red LED
flashes rapidly) when voltage is detected
• Adjustable sensitivity
• 5 to 1000VAC detection range
• Safe for CAT IV 1000V use
• Pocket clip
• ETL approved
• Powered by (2) “AAA” batteries
SAFETY INSTRUCTIONS
•
WARNING
•
• You must confirm that the batteries powering the VS4000
are not weak or dead
before
you use the unit to test for the
presence of AC voltage.
It is essential that you do this
each time you use the instrument
.
The usual way to check the batteries is to insert the blade
tip (Fig. 1, Callout 1) into both slots of a 110VAC outlet
known to be energized with the VS4000’s sensitivity set to
maximum. If the beeper does not sound and the LED does
not light for either slot, replace both “AAA” batteries before
proceeding. Another simple way to check for live batteries
is to briskly rub the tip of the unit through your hair with
sensitivity maximized; static electricity has more than
enough voltage to activate the beeper and LED.
• Remember to move the power switch of the VS4000 to the
OFF
position after you have finished using the unit. This is a
safety instruction because leaving the instrument powered
5
