Advertising Disclosure

Best Circuit Testers Deals Online In The US


Last Updated - July 18, 2025

Filter
Best Choice
Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester
Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester
Free Shipping
$49.97
Best Value
Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters and Case
Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters and Case
Free Shipping
$69.98
AWBLIN Upgraded Automotive Buzzer Test Light 4-60V DC Digital LED Circuit Tester, Heavy Duty Light Tester with Voltmeter, Auto Bidirectional Voltage Tester Electric Test Pen
AWBLIN Upgraded Automotive Buzzer Test Light 4-60V DC Digital LED Circuit Tester, Heavy Duty Light Tester with Voltmeter, Auto Bidirectional Voltage Tester Electric Test Pen
Free Shipping
$22.99
Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer, 110-125V AC, for GFCI / Standard / Extension Cords & More, 7 Visual LED Tests , Red
Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer, 110-125V AC, for GFCI / Standard / Extension Cords & More, 7 Visual LED Tests , Red
Free Shipping
$5.99
Klein Tools 80025 Outlet Tester Kit with GFCI Tester and Non-Contact Voltage Test Pen, 2-Piece
Klein Tools 80025 Outlet Tester Kit with GFCI Tester and Non-Contact Voltage Test Pen, 2-Piece
Free Shipping
$23.26
29% Off
Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light Tester
Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light Tester
Free Shipping
$9.99$13.99
NSi Industries TES-111 Twin Probe Voltage Tester, 80-250 VAC,Neon
NSi Industries TES-111 Twin Probe Voltage Tester, 80-250 VAC,Neon
Free Shipping
$6.11
Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip
Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip
Free Shipping
$19.97
12% Off
Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles
Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles
Free Shipping
$21.97$24.97
Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical Outlets, Detects Common Wiring Problems
Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical Outlets, Detects Common Wiring Problems
Free Shipping
$12.97
11% Off
MXCOIRTP Voltage Tester, Non-Contact Voltage Detector, Electrical Tester, 3 Ranges AC 12V/48V/70V-1000V, Live/Null Wire Tester with Buzzer Alarm and Flashlight, Wire Breakpoint Finder - Orange
MXCOIRTP Voltage Tester, Non-Contact Voltage Detector, Electrical Tester, 3 Ranges AC 12V/48V/70V-1000V, Live/Null Wire Tester with Buzzer Alarm and Flashlight, Wire Breakpoint Finder - Orange
Free Shipping
$7.99$8.99
43% Off
Sperry Instruments GFI6302 GFCI Outlet / Receptacle Tester, Standard 120V AC Outlets, 7 Visual Indication / Wiring Legend, Home & Professional Use, Yellow & Black
Sperry Instruments GFI6302 GFCI Outlet / Receptacle Tester, Standard 120V AC Outlets, 7 Visual Indication / Wiring Legend, Home & Professional Use, Yellow & Black
Free Shipping
$9.06$15.94
5% Off
NOYAFA NF-827 Circuit Breaker Finder Tool with 3 Accessories &GFCI Outlet Tester, 90-120V AC Circuit Breaker Finder, Quickly Identify NCV Circuit Tester with Storage Case, Sensitivity Adjustment
NOYAFA NF-827 Circuit Breaker Finder Tool with 3 Accessories &GFCI Outlet Tester, 90-120V AC Circuit Breaker Finder, Quickly Identify NCV Circuit Tester with Storage Case, Sensitivity Adjustment
Free Shipping
$47.49$49.99
20% Off
VDIAGTOOL V210 Wire Tracer Automotive Electrical Open & Short Finder Circuit Tester Wire Breaker Finder Fault Probe Cable Tracker Electrical DC 6-42V
VDIAGTOOL V210 Wire Tracer Automotive Electrical Open & Short Finder Circuit Tester Wire Breaker Finder Fault Probe Cable Tracker Electrical DC 6-42V
Free Shipping
$22.39$27.99
12% Off
KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester with LCD Display, Buzzer Alarm, Wire Breakpoint Finder
KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester with LCD Display, Buzzer Alarm, Wire Breakpoint Finder
Free Shipping
$14.99$16.99
Focemta Circuit Breaker Finder & GFCI Outlet Tester with Digital LCD Display, 90-135V Electrical Circuit Tracer Tool for Electricians/DIY – Lightweight (Includes Batteries & Carrying Case)
Focemta Circuit Breaker Finder & GFCI Outlet Tester with Digital LCD Display, 90-135V Electrical Circuit Tracer Tool for Electricians/DIY – Lightweight (Includes Batteries & Carrying Case)
Free Shipping
$49.99
Automotive Test Light with 3-48V LED Digital Display, Circuit Tester Automotive with Voltmeter and Dual Color Polarity Indicator Light, Electrical Voltage Test Pen with Sharp Stainless Probe
Automotive Test Light with 3-48V LED Digital Display, Circuit Tester Automotive with Voltmeter and Dual Color Polarity Indicator Light, Electrical Voltage Test Pen with Sharp Stainless Probe
Free Shipping
$7.40
Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe
Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe
Free Shipping
$21.99
12% Off
Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow & Black
Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester (GFI6302) Kit, Electrical AC Voltage Detector, Yellow & Black
Free Shipping
$19.91$22.66
Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
Free Shipping
$64.98