LOW VOLTAGE
TESTER
USER’S MANUAL
CT102
Please read this manual carefully and
thoroughly before using this product.
KEY FEATURES
• Visual indication of AC or DC voltage
• Versatile alligator clip leads with
boots
• ETL approved; safe for CAT I use
• Double insulated housing and leads
• Pocket clip on back
SAFETY
INSTRUCTIONS
DANGER
Electric
Ꮨ Warning Ꮨ
Shock Risk
To avoid possible electric shock or
personal injury, and to avoid damaging
the tester or the equipment being
tested:
• Do not use the CT102 in any way not
detailed in this manual or the tester's
safety features may be compromised.
• Never use the tester to detect the
presence of voltages higher than 50V
(AC or DC). Attaching the clip leads
across a 110V or 220V line will burn
out the bulb, increasing the risk of
shock, personal injury and equipment
DANGER
Electric
Shock Risk
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damage. Use caution when detecting
AC voltages above 42VAC
RMS
.
• Before using the tester, inspect the
case. Do not use the CT102 if the
case is damaged. Look for cracks
or missing plastic. Pay particular
attention to the insulation around
the connectors.
• Do not operate the tester around
explosive gas, vapor, or dust.
• When using the probes, keep your
fingers behind the finger guards.
Never touch the metal ends of
the probes when making a
measurement.
OPERATING
INSTRUCTIONS
Attach the clip leads across a lowvoltage device (a doorbell transformer
or relay, for example) or any two points
in a low-voltage DC circuit. The bulb
will light to indicate the presence of
5 to 50VDC.
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