2
Introduction
1
WARNINGS
The Southwire 41161N LED Voltage Detector & Tester packs a
variety of useful functions into one compact & powerful
electrical test tool. The MODE button selects between 1)
AC/DC voltage test mode, 2) Non-Contact Voltage (NCV)
Detector mode and 3) Continuity Test mode. The AC/DC
voltage test mode provides for AC voltage testing from 12V to
600V and DC voltage testing from 9V to 400V. It automatically
determines whether AC or DC voltage is being measured. The
non-contact voltage (NCV) detector mode detects the
presence of AC voltage from 100-1000V. The tester alerts you
with both a flashing red LED and an audible sounder. The
NCV also features a comprehensive self-test feature to ensure
the NCV is working correctly. The 41161N LED Voltage
Detector & Tester also tests for continuity. Test leads store
out of the way and there’s a handy work light that you can use
anytime for those dimly lit areas.
WARNINGS
Comply with all safety codes. Use approved personal protec-
tive equipment when working near live electrical circuits -
particularly with regard to arc-flash potential
Input Limits
Function
Maximum Input
Voltage AC or DC
600V AC RMS /400V DC
• Read, understand, and follow the safety rules and operating
instructions in this manual before using this tester.
• The tester’s safety features may not protect the user if not
used in accordance with the manufacturer’s instructions.
• Ensure that the test leads are fully seated in the input jacks
and keep fingers away from the metal probe tips and behind
the finger guards when taking measurements.
• Before changing operating modes, always disconnect the
test leads from the circuit under test.
• Use only UL listed test leads with the proper safety catego-
ry rating.
• Comply with all safety codes. Use approved personal
protective equipment when working near live electrical
circuits - particularly with regard to arc-flash potential.
• Use caution when working on or near bare conductors or
bus bars.
• Use caution on live circuits. Voltages above 30V AC RMS,
42V AC peak, or 60V DC pose a shock hazard.
• Do not use the tester or test leads if they appear damaged.
• Do not use the tester if it operates incorrectly. Protection
may be compromised
• Verify operation before using tester by measuring a known
live voltage.
• Do not use the tester in wet or damp environments or
during electrical storms.
• Do not use the tester near explosive vapors, dust, or
gasses.
• Do not apply voltage or current that exceeds the tester’s
maximum rated input limit.
