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$89.99
Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet And Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece
Amazon.com
1K+
Free shipping
$89.99
Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet And Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece
Amazon.com
1K+
$49.97
Klein Et310 Circuit Breaker Finder/Tester
New Feedonomics Feed - ARC 8/12/2025
24K+
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Klein Et310 Circuit Breaker Finder/Tester
New Feedonomics Feed - ARC 8/12/2025
24K+
$7.98
MXCOIRTP Automotive Test Light With 3-120V LED DC Digital Voltage Display, Circuit Tester Automotive With Dual Color Polarity Indicator, Electrical
Amazon.com
6
$7.98
MXCOIRTP Automotive Test Light With 3-120V LED DC Digital Voltage Display, Circuit Tester Automotive With Dual Color Polarity Indicator, Electrical
Amazon.com
6
$8.84
Morris 59020 Circuit Tester 90-300V
New Feedonomics Feed - ARC 8/12/2025
$8.84
Morris 59020 Circuit Tester 90-300V
New Feedonomics Feed - ARC 8/12/2025
$239.64
Klein Ncvt1xt Non-Contact Voltage Tester, 70 To 1000V Ac
New Feedonomics Feed - ARC 8/12/2025
$239.64
Klein Ncvt1xt Non-Contact Voltage Tester, 70 To 1000V Ac
New Feedonomics Feed - ARC 8/12/2025
$45.99
Focemta Circuit Breaker Finder & GFCI Outlet Tester With Digital LCD Display, 90-135V Electrical Circuit Tracer Tool For Electricians/DIY -
Amazon.com
379
Free shipping
$45.99
Focemta Circuit Breaker Finder & GFCI Outlet Tester With Digital LCD Display, 90-135V Electrical Circuit Tracer Tool For Electricians/DIY -
Amazon.com
379
$299.99
Klein Et450 Advanced Circuit Tracer Kit
New Feedonomics Feed - ARC 8/12/2025
129
$299.99
Klein Et450 Advanced Circuit Tracer Kit
New Feedonomics Feed - ARC 8/12/2025
129
$279.00
Extech CT70 AC Circuit Load Tester
Amazon.com
247
Free shipping
$279.00
Extech CT70 AC Circuit Load Tester
Amazon.com
247
$23.99
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
Amazon.com
60
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Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
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60
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$16.99
KAIWEETS Voltage Tester/Non-Contact Voltage Tester With Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester With
Amazon.com
20K+
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KAIWEETS Voltage Tester/Non-Contact Voltage Tester With Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester With
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20K+
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Premium Digital LED Automotive Circuit Tester, DC 2.6V-32V Test Light With Portable PU Extended Spring Wire, Vehicle Circuits Low Voltage Light Tester
Amazon.com
2K+
$17.99
Premium Digital LED Automotive Circuit Tester, DC 2.6V-32V Test Light With Portable PU Extended Spring Wire, Vehicle Circuits Low Voltage Light Tester
Amazon.com
2K+
$19.97
Klein Et40 Voltage Tester
New Feedonomics Feed - ARC 8/12/2025
1K+
$19.97
Klein Et40 Voltage Tester
New Feedonomics Feed - ARC 8/12/2025
1K+
$25.99
AERMOTOR 6V-48V DC Car Power Circuit Probe Tester With Dual LED Lights,Circuit Tester Automotive,Fuse & Voltage Tester,Electrical Automotive Digital
Amazon.com
13
$25.99
AERMOTOR 6V-48V DC Car Power Circuit Probe Tester With Dual LED Lights,Circuit Tester Automotive,Fuse & Voltage Tester,Electrical Automotive Digital
Amazon.com
13
$67.99
$79.99
Fluke BK120 Smarttrace Breaker Finder And Socket Tester
Amazon.com
267
Free shipping
15% off
$67.99
$79.99
Fluke BK120 Smarttrace Breaker Finder And Socket Tester
Amazon.com
267
$27.99
Lunarlipes Tone Generator Kit, Wire Tracer Circuit Tester, Tone Tracing Probe Kit, 200EP High Accuracy Cable Tester, Line Finder Toner Inductive
Amazon.com
361
$27.99
Lunarlipes Tone Generator Kit, Wire Tracer Circuit Tester, Tone Tracing Probe Kit, 200EP High Accuracy Cable Tester, Line Finder Toner Inductive
Amazon.com
361
$8.49
$9.88
NEW SUN® 7-Pin Trailer Plug Tester With LED Light, 7-Way Trailer Light Tester, Round RV Blade Electric Wiring Tester, 7-Way Trailer Light Circuit
Amazon.com
558
14% off
$8.49
$9.88
NEW SUN® 7-Pin Trailer Plug Tester With LED Light, 7-Way Trailer Light Tester, Round RV Blade Electric Wiring Tester, 7-Way Trailer Light Circuit
Amazon.com
558
$89.99
Autel Powerscan PS100 Automotive Circuit Tester 2.0, 12-24V Power Circuit Probe Tool, Auto Electrical Short Open Circuit Finder, AC/DC/Resistance/
Amazon.com
187
Free shipping
$89.99
Autel Powerscan PS100 Automotive Circuit Tester 2.0, 12-24V Power Circuit Probe Tool, Auto Electrical Short Open Circuit Finder, AC/DC/Resistance/
Amazon.com
187
$16.99
$18.69
Short Pro Tool - 24 VAC Circuit Short Finder Tester With Light Indicator And Automatic Reset
Amazon.com
5
$16.99
$18.69
Short Pro Tool - 24 VAC Circuit Short Finder Tester With Light Indicator And Automatic Reset
Amazon.com
5
$89.99
Autel Powerscan PS100 Power Circuit Probe Kit, 2025 Advanced Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Tool, Activate
Amazon.com
18
Free shipping
$89.99
Autel Powerscan PS100 Power Circuit Probe Kit, 2025 Advanced Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Tool, Activate
Amazon.com
18
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HUAREW 3 AMP 5 AMP Resettable Fuse HVAC Tools Circuit Tester For Circuit Breaker 32V DC & 125/250V AC
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81
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HUAREW 3 AMP 5 AMP Resettable Fuse HVAC Tools Circuit Tester For Circuit Breaker 32V DC & 125/250V AC
Amazon.com
81
$28.99
Chaoos Tone Generator Kit, Wire Tracer Circuit Tester, 200EP High Accuracy Wire Tester Kit, Wires Tone Tracer, Multi-Tone Cable Test Kits With
Amazon.com
18
$28.99
Chaoos Tone Generator Kit, Wire Tracer Circuit Tester, 200EP High Accuracy Wire Tester Kit, Wires Tone Tracer, Multi-Tone Cable Test Kits With
Amazon.com
18
$18.99
Oyviny 7 Way Blade & 4 Pin Trailer Light Circuit Tester With LED Indicators 6 Function Light Tester For RV Truck Vehicle Side Trailer Socket Tester
Amazon.com
1K+
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Oyviny 7 Way Blade & 4 Pin Trailer Light Circuit Tester With LED Indicators 6 Function Light Tester For RV Truck Vehicle Side Trailer Socket Tester
Amazon.com
1K+
$199.99
$213.10
Ideal Electrical Suretrace Digital Circuit Tracer (61-946) 0-480 Volts AC/DC With Backlit Display - Find Breakers, Fuses, Wires, Dead Shorts, And
Amazon.com
43
Free shipping
$199.99
$213.10
Ideal Electrical Suretrace Digital Circuit Tracer (61-946) 0-480 Volts AC/DC With Backlit Display - Find Breakers, Fuses, Wires, Dead Shorts, And
Amazon.com
43
$11.99
WINAMOO Automotive Test Light 5-90V Digital LED Circuit Tester With Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester With
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212
$11.99
WINAMOO Automotive Test Light 5-90V Digital LED Circuit Tester With Voltage Display, Auto Bidirectional Light Tester, Electrical Voltage Tester With
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212
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ALLOSUN Automotive Wire Piercing DC Voltage Circuit 6V / 12V Hook Probe Tester 59 Inch Cord With LED & Buzzer Indicator
Amazon.com
381
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ALLOSUN Automotive Wire Piercing DC Voltage Circuit 6V / 12V Hook Probe Tester 59 Inch Cord With LED & Buzzer Indicator
Amazon.com
381
$49.29
Extech AC Circuit Breaker Finder/Receptacle Tester | Cole-Parmer
Cole-Parmer
2K+
$49.29
Extech AC Circuit Breaker Finder/Receptacle Tester | Cole-Parmer
Cole-Parmer
2K+
$39.99
Test Light Probe Kit, 3-72V DC LED Digital Automotive Circuit Tester With Voltmeter, 18 Pieces Multi Function Auto Fuse Voltage Tester Electric Probe
Amazon.com
193
Free shipping
$39.99
Test Light Probe Kit, 3-72V DC LED Digital Automotive Circuit Tester With Voltmeter, 18 Pieces Multi Function Auto Fuse Voltage Tester Electric Probe
Amazon.com
193
$217.99
Enthusiast Bundles Scan Tool With Digital Circuit Tester | Professional BMW/MINI/Rolls Royce Elite : Scan Tool With Digital Circuit ...
Turner Motorsport
Free shipping
$217.99
Enthusiast Bundles Scan Tool With Digital Circuit Tester | Professional BMW/MINI/Rolls Royce Elite : Scan Tool With Digital Circuit ...
Turner Motorsport
Free shipping
$36.09
$37.99
BMW F30 328I N20 2.0L - Schwaben Digital Circuit Tester With Test Probes: Embark On A New Level Of Circuit Testing With The Schwaben Digital ...
Turner Motorsport
$36.09
$37.99
BMW F30 328I N20 2.0L - Schwaben Digital Circuit Tester With Test Probes: Embark On A New Level Of Circuit Testing With The Schwaben Digital ...
Turner Motorsport
$199.66
Klein Tools HVNCVT-1 Dual Range High Voltage Tester
FireFold
101
$199.66
Klein Tools HVNCVT-1 Dual Range High Voltage Tester
FireFold
101
$53.00
OTC 3642 12V24V Truck Circuit Tester
Mile-X Equipment, Inc.
30-day returns (most items)
$53.00
OTC 3642 12V24V Truck Circuit Tester
Mile-X Equipment, Inc.
30-day returns
$44.00
OTC 3634 Heavy-Duty Straight Cord Circuit Tester
Mile-X Equipment, Inc.
30-day returns (most items)
$44.00
OTC 3634 Heavy-Duty Straight Cord Circuit Tester
Mile-X Equipment, Inc.
30-day returns
$15.48
Hi/Lo Volt Circuit Tester SYTL3022
Intella Parts Company
$15.48
Hi/Lo Volt Circuit Tester SYTL3022
Intella Parts Company
$55.99
Lisle Heavy Duty Circuit Tester/Jumper, LIS32900
Advance Auto Parts
$55.99
Lisle Heavy Duty Circuit Tester/Jumper, LIS32900
Advance Auto Parts
$33.30
Heavy Duty Low Volt Circuit Tester SYTL3023
Intella Parts Company
$33.30
Heavy Duty Low Volt Circuit Tester SYTL3023
Intella Parts Company
$151.30
Testo 750-3 Digital Voltage, Continuity, Phase Sequence Tester With GFCI Test, Flashlight & 3 Digit LCD
Globaltestsupply.com
$151.30
Testo 750-3 Digital Voltage, Continuity, Phase Sequence Tester With GFCI Test, Flashlight & 3 Digit LCD
Globaltestsupply.com
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    Shop circuit checker

    Sponsored
    About our ads
    $89.99
    Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet And Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece
    Amazon.com
    1K+
    Free shipping
    $89.99
    Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet And Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece
    Amazon.com
    1K+
    $49.97
    Klein Et310 Circuit Breaker Finder/Tester
    New Feedonomics Feed - ARC 8/12/2025
    24K+
    $49.97
    Klein Et310 Circuit Breaker Finder/Tester
    New Feedonomics Feed - ARC 8/12/2025
    24K+
    $7.98
    MXCOIRTP Automotive Test Light With 3-120V LED DC Digital Voltage Display, Circuit Tester Automotive With Dual Color Polarity Indicator, Electrical
    Amazon.com
    6
    $7.98
    MXCOIRTP Automotive Test Light With 3-120V LED DC Digital Voltage Display, Circuit Tester Automotive With Dual Color Polarity Indicator, Electrical
    Amazon.com
    6
    $8.84
    Morris 59020 Circuit Tester 90-300V
    New Feedonomics Feed - ARC 8/12/2025
    $8.84
    Morris 59020 Circuit Tester 90-300V
    New Feedonomics Feed - ARC 8/12/2025
    $239.64
    Klein Ncvt1xt Non-Contact Voltage Tester, 70 To 1000V Ac
    New Feedonomics Feed - ARC 8/12/2025
    $239.64
    Klein Ncvt1xt Non-Contact Voltage Tester, 70 To 1000V Ac
    New Feedonomics Feed - ARC 8/12/2025
    $45.99
    Focemta Circuit Breaker Finder & GFCI Outlet Tester With Digital LCD Display, 90-135V Electrical Circuit Tracer Tool For Electricians/DIY -
    Amazon.com
    379
    Free shipping
    $45.99
    Focemta Circuit Breaker Finder & GFCI Outlet Tester With Digital LCD Display, 90-135V Electrical Circuit Tracer Tool For Electricians/DIY -
    Amazon.com
    379
    $299.99
    Klein Et450 Advanced Circuit Tracer Kit
    New Feedonomics Feed - ARC 8/12/2025
    129
    $299.99
    Klein Et450 Advanced Circuit Tracer Kit
    New Feedonomics Feed - ARC 8/12/2025
    129
    $279.00
    Extech CT70 AC Circuit Load Tester
    Amazon.com
    247
    Free shipping
    $279.00
    Extech CT70 AC Circuit Load Tester
    Amazon.com
    247
    $23.99
    Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
    Amazon.com
    60
    $23.99
    Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
    Amazon.com
    60
    $14.99
    $16.99
    KAIWEETS Voltage Tester/Non-Contact Voltage Tester With Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester With
    Amazon.com
    20K+
    11% off
    $14.99
    $16.99
    KAIWEETS Voltage Tester/Non-Contact Voltage Tester With Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester With
    Amazon.com
    20K+
    $17.99
    Premium Digital LED Automotive Circuit Tester, DC 2.6V-32V Test Light With Portable PU Extended Spring Wire, Vehicle Circuits Low Voltage Light Tester
    Amazon.com
    2K+
    $17.99
    Premium Digital LED Automotive Circuit Tester, DC 2.6V-32V Test Light With Portable PU Extended Spring Wire, Vehicle Circuits Low Voltage Light Tester
    Amazon.com
    2K+
    $19.97
    Klein Et40 Voltage Tester
    New Feedonomics Feed - ARC 8/12/2025
    1K+
    $19.97
    Klein Et40 Voltage Tester
    New Feedonomics Feed - ARC 8/12/2025
    1K+
    $25.99
    AERMOTOR 6V-48V DC Car Power Circuit Probe Tester With Dual LED Lights,Circuit Tester Automotive,Fuse & Voltage Tester,Electrical Automotive Digital
    Amazon.com
    13
    $25.99
    AERMOTOR 6V-48V DC Car Power Circuit Probe Tester With Dual LED Lights,Circuit Tester Automotive,Fuse & Voltage Tester,Electrical Automotive Digital
    Amazon.com
    13
    $67.99
    $79.99
    Fluke BK120 Smarttrace Breaker Finder And Socket Tester
    Amazon.com
    267
    Free shipping
    15% off
    $67.99
    $79.99
    Fluke BK120 Smarttrace Breaker Finder And Socket Tester
    Amazon.com
    267
    $27.99
    Lunarlipes Tone Generator Kit, Wire Tracer Circuit Tester, Tone Tracing Probe Kit, 200EP High Accuracy Cable Tester, Line Finder Toner Inductive
    Amazon.com
    361
    $27.99
    Lunarlipes Tone Generator Kit, Wire Tracer Circuit Tester, Tone Tracing Probe Kit, 200EP High Accuracy Cable Tester, Line Finder Toner Inductive
    Amazon.com
    361
    $8.49
    $9.88
    NEW SUN® 7-Pin Trailer Plug Tester With LED Light, 7-Way Trailer Light Tester, Round RV Blade Electric Wiring Tester, 7-Way Trailer Light Circuit
    Amazon.com
    558
    14% off
    $8.49
    $9.88
    NEW SUN® 7-Pin Trailer Plug Tester With LED Light, 7-Way Trailer Light Tester, Round RV Blade Electric Wiring Tester, 7-Way Trailer Light Circuit
    Amazon.com
    558
    $89.99
    Autel Powerscan PS100 Automotive Circuit Tester 2.0, 12-24V Power Circuit Probe Tool, Auto Electrical Short Open Circuit Finder, AC/DC/Resistance/
    Amazon.com
    187
    Free shipping
    $89.99
    Autel Powerscan PS100 Automotive Circuit Tester 2.0, 12-24V Power Circuit Probe Tool, Auto Electrical Short Open Circuit Finder, AC/DC/Resistance/
    Amazon.com
    187
    $16.99
    $18.69
    Short Pro Tool - 24 VAC Circuit Short Finder Tester With Light Indicator And Automatic Reset
    Amazon.com
    5
    $16.99
    $18.69
    Short Pro Tool - 24 VAC Circuit Short Finder Tester With Light Indicator And Automatic Reset
    Amazon.com
    5