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$44.97
$49.97
Klein Tools ET310 AC Circuit Breaker Finder, Electric And Voltage Tester With Integrated GFCI Outlet Tester
Amazon.com
22K+
Free shipping
10% off
$44.97
$49.97
Klein Tools ET310 AC Circuit Breaker Finder, Electric And Voltage Tester With Integrated GFCI Outlet Tester
Amazon.com
22K+
$89.99
Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet And Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece
Amazon.com
374
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
374
$26.99
Klein Tools 80025 Outlet Tester Kit With GFCI Tester And Non-Contact Voltage Test Pen, 2-Piece
Amazon.com
228
$26.99
Klein Tools 80025 Outlet Tester Kit With GFCI Tester And Non-Contact Voltage Test Pen, 2-Piece
Amazon.com
228
$7.99
Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester, 2 Range, 36 Inch Lead, Yellow
Amazon.com
1K+
$7.99
Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester, 2 Range, 36 Inch Lead, Yellow
Amazon.com
1K+
$25.31
$26.99
Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow
Amazon.com
8K+
$25.31
$26.99
Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow
Amazon.com
8K+
$59.39
Klein Tools 80016 Circuit Breaker Finder Tool Kit With Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 And Cat. No. 69411
Amazon.com
19K+
Free shipping
$59.39
Klein Tools 80016 Circuit Breaker Finder Tool Kit With Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 And Cat. No. 69411
Amazon.com
19K+
$69.98
Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters And Case
Amazon.com
544
Free shipping
$69.98
Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters And Case
Amazon.com
544
$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
13
$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
13
$67.99
$79.99
Fluke BK120 Smarttrace Breaker Finder And Socket Tester
Amazon.com
34
Free shipping
15% off
$67.99
$79.99
Fluke BK120 Smarttrace Breaker Finder And Socket Tester
Amazon.com
34
$169.99
$199.97
Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resistance, 125V/250V/500V/1000V, Auto-Ranging TRMS Multimeter
Amazon.com
1K+
Free shipping
14% off
$169.99
$199.97
Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resistance, 125V/250V/500V/1000V, Auto-Ranging TRMS Multimeter
Amazon.com
1K+
$44.99
NOYAFA NF-827 Circuit Breaker Finder Tool With 3 Accessories &GFCI Outlet Tester, 90-120V AC Circuit Breaker Finder, Quickly Identify NCV Circuit
Amazon.com
110
Free shipping
$44.99
NOYAFA NF-827 Circuit Breaker Finder Tool With 3 Accessories &GFCI Outlet Tester, 90-120V AC Circuit Breaker Finder, Quickly Identify NCV Circuit
Amazon.com
110
$89.99
Autel Powerscan PS100 Power Circuit Probe Kit, 2026 Advanced Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Tool, Activate
Amazon.com
Free shipping
$89.99
Autel Powerscan PS100 Power Circuit Probe Kit, 2026 Advanced Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Tool, Activate
Amazon.com
Free shipping
$61.89
Klein Tools CL120 Digital Clamp Meter, Auto-Ranging 400 Amp AC, AC/DC Voltage, Resistance, Continuity, Non-Contact Voltage Tester Detection
Amazon.com
1K+
Free shipping
$61.89
Klein Tools CL120 Digital Clamp Meter, Auto-Ranging 400 Amp AC, AC/DC Voltage, Resistance, Continuity, Non-Contact Voltage Tester Detection
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
18
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
18
$344.00
Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3EZREDAS
Grainger
104
$344.00
Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3EZREDAS
Grainger
104
$412.02
Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3LS01
Grainger
1
$412.02
Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3LS01
Grainger
1
$141.22
Extech Electrical Test Kit Model: CB10-KIT
Grainger
2K+
$141.22
Extech Electrical Test Kit Model: CB10-KIT
Grainger
2K+
$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+
$277.95
$293.00
BK Precision 881 In-Circuit ESR And DC Resistance Capacitor Tester
Test Equipment Depot
3
$277.95
$293.00
BK Precision 881 In-Circuit ESR And DC Resistance Capacitor Tester
Test Equipment Depot
3
$1,317.75
Megger LT300-EN-00 High Current Loop Tester With Red/Green Lead Set
Test Equipment Depot
$1,317.75
Megger LT300-EN-00 High Current Loop Tester With Red/Green Lead Set
Test Equipment Depot
$136.83
6422120G2 GENERAL ELECTRIC - Test Equipment & High Voltage Tester Supplies
Radwell.com
$136.83
6422120G2 GENERAL ELECTRIC - Test Equipment & High Voltage Tester Supplies
Radwell.com
$226.70
$293.00
B&K Precision 881 - In-Circuit ESR Tester
TEquipment
3
22% off
$226.70
$293.00
B&K Precision 881 - In-Circuit ESR Tester
TEquipment
3
$17.82
Klein Tools Circuit Continuity & Voltage Testers: Tester Type: Receptacle Tester W/ GFCI | Part RT210
MSC Direct
Special Offer
$17.82
Klein Tools Circuit Continuity & Voltage Testers: Tester Type: Receptacle Tester W/ GFCI | Part RT210
MSC Direct
Special Offer
$148.23
C3-206-A STATES PRODUCTS - Test Equipment & Circuit Tester Supplies
Radwell.com
$148.23
C3-206-A STATES PRODUCTS - Test Equipment & Circuit Tester Supplies
Radwell.com
$476.00
T130K4 NSI INDUSTRIES - Test Equipment & Circuit Tester Supplies
Radwell.com
$476.00
T130K4 NSI INDUSTRIES - Test Equipment & Circuit Tester Supplies
Radwell.com
$136.16
$142.00
Megger TPT420 (1013-189) 2-Pole Voltage Tester, 1000V AC, 1500V DC
Test Equipment Depot
$136.16
$142.00
Megger TPT420 (1013-189) 2-Pole Voltage Tester, 1000V AC, 1500V DC
Test Equipment Depot
$279.00
Extech CT70 - GFCI & AC Circuit Analyzer
TEquipment
2K+
$279.00
Extech CT70 - GFCI & AC Circuit Analyzer
TEquipment
2K+
$279.00
Extech AC Circuit Load Tester 2.8, 8" X 2" | Cole-Parmer
Cole-Parmer
2K+
$279.00
Extech AC Circuit Load Tester 2.8, 8" X 2" | Cole-Parmer
Cole-Parmer
2K+
$2,495.00
HT Instruments Combi521ev - Multifunction Electrical Installation And EVSE Tester With EV-Test 100
TEquipment
$2,495.00
HT Instruments Combi521ev - Multifunction Electrical Installation And EVSE Tester With EV-Test 100
TEquipment
$3,705.00
Associated Equipment Electrical System Tester 12/24V 500A Digital - 6042
Global Industrial
7
$3,705.00
Associated Equipment Electrical System Tester 12/24V 500A Digital - 6042
Global Industrial
7
$2,998.00
PCWI DC15-IK Compact DC15 High Voltage Holiday Detector Industrial Kit No. 0920 / DC15IND DC Spark Tester Porosity Coatings Paint Inspections Jeep
ABQ Industrial
$2,998.00
PCWI DC15-IK Compact DC15 High Voltage Holiday Detector Industrial Kit No. 0920 / DC15IND DC Spark Tester Porosity Coatings Paint Inspections Jeep
ABQ Industrial
$239.75
$261.23
Fluke Circuit Continuity & Voltage Testers: Tester Type: Voltage Tester | Part PRV240FS
MSC Direct
Special Offer
$239.75
$261.23
Fluke Circuit Continuity & Voltage Testers: Tester Type: Voltage Tester | Part PRV240FS
MSC Direct
Special Offer
$92.65
Extech Multifunction Voltage Tester With LCD | Cole-Parmer
Cole-Parmer
24
$92.65
Extech Multifunction Voltage Tester With LCD | Cole-Parmer
Cole-Parmer
24
$7.31
Receptacle Tester For Standard Outlets Tests NEMA 5-15P Sockets For Correct Wiring
CableWholesale
$7.31
Receptacle Tester For Standard Outlets Tests NEMA 5-15P Sockets For Correct Wiring
CableWholesale
$13.46
Morris 59070 4 Way Circuit Tester
Gordon Electric Supply
1
$13.46
Morris 59070 4 Way Circuit Tester
Gordon Electric Supply
1
$55.82
Klein Tools ET310 Digital Circuit Breaker Finder
Markertek
$55.82
Klein Tools ET310 Digital Circuit Breaker Finder
Markertek
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    Shop electric circuit testers

    Sponsored
    About our ads
    $44.97
    $49.97
    Klein Tools ET310 AC Circuit Breaker Finder, Electric And Voltage Tester With Integrated GFCI Outlet Tester
    Amazon.com
    22K+
    Free shipping
    10% off
    $44.97
    $49.97
    Klein Tools ET310 AC Circuit Breaker Finder, Electric And Voltage Tester With Integrated GFCI Outlet Tester
    Amazon.com
    22K+
    $89.99
    Klein Tools 80101 Circuit Breaker Finder Kit, GFCI Outlet And Receptacle Tester Kit, Multimeter, NCVT, Outlet Tester, Leads, 4-Piece
    Amazon.com
    374
    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
    374
    $26.99
    Klein Tools 80025 Outlet Tester Kit With GFCI Tester And Non-Contact Voltage Test Pen, 2-Piece
    Amazon.com
    228
    $26.99
    Klein Tools 80025 Outlet Tester Kit With GFCI Tester And Non-Contact Voltage Test Pen, 2-Piece
    Amazon.com
    228
    $7.99
    Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester, 2 Range, 36 Inch Lead, Yellow
    Amazon.com
    1K+
    $7.99
    Gardner Bender Sperry Instruments CT6101 Heavy Duty Continuity Tester, 2 Range, 36 Inch Lead, Yellow
    Amazon.com
    1K+
    $25.31
    $26.99
    Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow
    Amazon.com
    8K+
    $25.31
    $26.99
    Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow
    Amazon.com
    8K+
    $59.39
    Klein Tools 80016 Circuit Breaker Finder Tool Kit With Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 And Cat. No. 69411
    Amazon.com
    19K+
    Free shipping
    $59.39
    Klein Tools 80016 Circuit Breaker Finder Tool Kit With Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 And Cat. No. 69411
    Amazon.com
    19K+
    $69.98
    Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters And Case
    Amazon.com
    544
    Free shipping
    $69.98
    Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters And Case
    Amazon.com
    544
    $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
    13
    $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
    13
    $67.99
    $79.99
    Fluke BK120 Smarttrace Breaker Finder And Socket Tester
    Amazon.com
    34
    Free shipping
    15% off
    $67.99
    $79.99
    Fluke BK120 Smarttrace Breaker Finder And Socket Tester
    Amazon.com
    34
    $169.99
    $199.97
    Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resistance, 125V/250V/500V/1000V, Auto-Ranging TRMS Multimeter
    Amazon.com
    1K+
    Free shipping
    14% off
    $169.99
    $199.97
    Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resistance, 125V/250V/500V/1000V, Auto-Ranging TRMS Multimeter
    Amazon.com
    1K+
    $44.99
    NOYAFA NF-827 Circuit Breaker Finder Tool With 3 Accessories &GFCI Outlet Tester, 90-120V AC Circuit Breaker Finder, Quickly Identify NCV Circuit
    Amazon.com
    110
    Free shipping
    $44.99
    NOYAFA NF-827 Circuit Breaker Finder Tool With 3 Accessories &GFCI Outlet Tester, 90-120V AC Circuit Breaker Finder, Quickly Identify NCV Circuit
    Amazon.com
    110
    $89.99
    Autel Powerscan PS100 Power Circuit Probe Kit, 2026 Advanced Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Tool, Activate
    Amazon.com
    Free shipping
    $89.99
    Autel Powerscan PS100 Power Circuit Probe Kit, 2026 Advanced Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Tool, Activate
    Amazon.com
    Free shipping
    $61.89
    Klein Tools CL120 Digital Clamp Meter, Auto-Ranging 400 Amp AC, AC/DC Voltage, Resistance, Continuity, Non-Contact Voltage Tester Detection
    Amazon.com
    1K+
    Free shipping
    $61.89
    Klein Tools CL120 Digital Clamp Meter, Auto-Ranging 400 Amp AC, AC/DC Voltage, Resistance, Continuity, Non-Contact Voltage Tester Detection
    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
    18
    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
    18
    $344.00
    Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3EZREDAS
    Grainger
    104
    $344.00
    Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3EZREDAS
    Grainger
    104
    $412.02
    Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3LS01
    Grainger
    1
    $412.02
    Power Probe Circuit Tester: Circuit Tester Kit, Electrical Circuits, 12 To 24V, Brass, Rubber Model: PP3LS01
    Grainger
    1
    $141.22
    Extech Electrical Test Kit Model: CB10-KIT
    Grainger
    2K+
    $141.22
    Extech Electrical Test Kit Model: CB10-KIT
    Grainger
    2K+
    $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+