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Our most popular products based on sales. Updated frequently.
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Any Department
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Tools & Home Improvement
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Electrical
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Circuit Testers
(Current)
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麻豆区 in Circuit Testers
#1
KAIWEETS Circuit Breaker Finder with LCD Display, GFCI Outlet Tester, Electrical Circuit Tracer Tool with NCV Test & Flashlight, Includes Carrying Case and Adapters- KT301P
4.5 out of 5 stars
鈥
696
1 offer from
$69.99
#2
Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
4.4 out of 5 stars
鈥
9,613
6 offers from
$72.82
#3
Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets
4.7 out of 5 stars
鈥
3,357
11 offers from
$9.09
#4
NOYAFA NF-8209S Network Cable Tester, Ethernet Cable Tester with CAT5, CAT6 Line Tracer, PoE, NCV, Length Test, Port Flashing, Fault Line Scan for Cable Grooming, LAN Network Cable Tracer Kit
4.5 out of 5 stars
鈥
146
2 offers from
$85.49
#5
AstroAI Circuit Breaker Finder with GFCI Outlet Tester, Electrical Tester Tool for Home/Workshop Circuit Tracing, Quickly Locates Breakers with Indicators, Digital Breaker Finder
4.3 out of 5 stars
鈥
207
1 offer from
$69.99
#6
VDIAGTOOL V210 Wire Tracer Electrical Automotive Open & Short Finder Circuit Tester Circuit Breaker Finder Fault Probe Wire Tester Electrical DC 6-42V
4.2 out of 5 stars
鈥
828
1 offer from
$44.99
#7
Focemta Circuit Breaker Finder Kit with GFCI Outlet Tester for 90-135V AC Circuits,Includes Light Socket Adapter, 3-2 Prong Grounding & Clip Adapter,Portable Electrical Tool with Carrying Case
4.4 out of 5 stars
鈥
402
7 offers from
$67.99
#8
Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters and Case
4.7 out of 5 stars
鈥
1,064
26 offers from
$110.90
#9
Electrical Short Open Finder for Em415pro, Professional Wire Break Finder, Automotive Circuit Tester, Cable Fault Locator, DC 6-42V Adjustable Circuit Breaker Finder Tool for Cars Trucks
4.1 out of 5 stars
鈥
47
2 offers from
$14.89
#10
Gardner Bender GRT-3500 Standard Outlet Tester
4.6 out of 5 stars
鈥
1,030
8 offers from
$12.60
#11
Power Circuit Probe Tester,6-24V DC Circuit Tester Automotive,Test Light,Fuse & Voltage Tester,Automotive Short Circuit Breake Finder Electrical Tools (Black) (Red)
4.2 out of 5 stars
鈥
291
4 offers from
$28.47
#12
FOCEMTA Circuit Breaker Finder & GFCI Outlet Tester with Digital LCD Display, 90-135V Electrical Circuit Tracer Tool for Electricians/DIY 鈥 Lightweight (Includes Batteries & Carrying Case)
4.0 out of 5 stars
鈥
551
4 offers from
$65.99
#13
ITEQ Power Circuit Probe Tester, 6V-24V DC Test Light, Automotive Short Circuit Located and Component Activated, 12V Auto Electrical Tester, Polarity Identify with LED Light, Overload Protection
4.6 out of 5 stars
鈥
410
1 offer from
$22.99
#14
Autel PowerScan PS100 Power Circuit Probe Kit 2026, 12V 24V Automotive Electrical Wire Tracer Circuit Relay Tester, Breaker Short Finder Digital Multimeter, Ground Check Activate Component, 40ft Cable
4.6 out of 5 stars
鈥
187
1 offer from
$129.00
#15
Outlet Tester Electrical GFCI Receptacle Detector with LCD Display, 90-250V Socket Tester, Circuit Polarity Voltage Detector, Plug Tester Breaker Finder with 6 Visual Indication CAT II 300V (CA Plug)
4.4 out of 5 stars
鈥
323
1 offer from
$18.99
#16
AWBLIN Wire Tracer Automotive Electrical Open & Short Finder Circuit Tester Wire Breaker Finder Fault Probe Cable Tracker Electrical DC 6-42V
4.4 out of 5 stars
鈥
98
1 offer from
$52.99
#17
Car Fuse Tester Automotive Current Circuit Tester Car Circuit Fault Finder 20A 48V Fuse Test Tool Automotive Blade Checker for Current Testing(Not Include Battery)
4.4 out of 5 stars
鈥
51
1 offer from
$24.99
#18
Proster Tone Generator Kit Wire Tracer Circuit Tester 200EP High Accuracy Cable Tester Line Finder Inductive Amplifier Probe Kit with Adjustable Volume for Network Cable Collation
4.0 out of 5 stars
鈥
125
1 offer from
$55.99
#19
Nilight 7 Way Blade Trailer Connector Tester with Red LEDs Indicators Heavy Duty 7 Pin Trailer Light Wire Circuit Tester Trailer Hitch Wiring Tester, 2 Years Warranty
4.4 out of 5 stars
鈥
362
1 offer from
$16.53
#20
NOYAFA NF-8209 Network Cable Tester, Ethernet Cable Wire Tester with POE & NCV for CAT5/CAT6 Wire Tracer, Length Test, RJ45 Network Tester Kit for Cable Tracer Telephone Line Finder Home Repair
4.2 out of 5 stars
鈥
1,984
1 offer from
$73.99
#21
4-Way Flat Trailer Wiring Tester, 4-Pin Double End Male & Female Plug Trailer Light Wire Circuit Tester with Indicators Testing Tool for Turn Signals Tail Lights Trouble Shooter
4.4 out of 5 stars
鈥
5
1 offer from
$11.99
#22
Fluke ST120+ GFCI Socket Tester with Audible Beeper
4.8 out of 5 stars
鈥
1,620
1 offer from
$38.37
#23
VCELINK Network Cable Tester, Ethernet Wire Test Tool for RJ45 CAT6A, CAT6, CAT5E, CAT5 Cable and RJ11 Phone Cable, Black, 1-Pack
4.5 out of 5 stars
鈥
156
1 offer from
$16.99
#24
Tadeto Circuit Breaker Finder Tool with Outlet Tester, Quickly GFCI, Voltage, Electric Tester with Dual LCD Display, Light Socket and 3-2 Prong Grounding Adapter, Alligator Clip Adapter
4.2 out of 5 stars
鈥
196
1 offer from
$63.99
#25
Outlet Tester with GFCI Check - Grounding & Receptacle Circuit Tester, Electric Outlet Tester Plug in, Automatic Electric Circuit Polarity Voltage Detector Breaker Finder (Yellow)
4.8 out of 5 stars
鈥
126
2 offers from
$12.99
#26
2026 Autel Powerscan PS100 Power Circuit Probe Tester, 12-24V Automotive Electrical System, Relay, Fuse, Ground Test Tool, Short&Open Circuit Breaker Finder, Component Activator, AC DC, 40FT Cable
4.7 out of 5 stars
鈥
181
1 offer from
$129.00
#27
7-Way Round Pin Tractor Trailer Light Tester One-Man Testing Replace# 7865L
4.7 out of 5 stars
鈥
103
1 offer from
$34.99
#28
Merisky Outlet Tester for Grounding Products, Grounding Tester with GFCI, Receptacle Socket Tester for Proper Wiring, Circuit Tester for Electrical Assessment
4.8 out of 5 stars
鈥
73
1 offer from
$12.99
#29
Carrying Case Compatible with Klein Tools ET310 AC/80101/80016 Circuit Breaker Finder,GFCI Outlet Tester,69149P Electrical Test Kit,Circuit Tester Storage Organizer for Digital Multimeter,Clamp Meter
4.7 out of 5 stars
鈥
294
1 offer from
$24.99
#30
Fluke BK120 SmartTrace Breaker Finder and Socket Tester
4.6 out of 5 stars
鈥
514
9 offers from
$111.99
#31
Mcbazel Network Cable Tester for RJ11/RJ45 鈥 Ethernet & Phone Line Tester with Smart Indicator Display, Wire Mapping & Short Circuit Detection
4.2 out of 5 stars
鈥
163
1 offer from
$9.99
#32
Jonard Tools PT-100 Coax Cable Wire Tracer Pocket Continuity Tester & Toner with Audible Beep and LED, Red
4.4 out of 5 stars
鈥
330
6 offers from
$26.10
#33
Brileine Dual-Function Coaxial & RJ45 Network Cable Tester with 2-Pack BNC Male to F Female Adapters, CAT5/CAT6/Coax Continuity Checker (Battery Not Included)
4.1 out of 5 stars
鈥
259
1 offer from
$29.99
#34
OBDResource Smart Automotive Test Light 0.8V-100V Circuit Tester with Buzzer & Flashlight, DC Voltage Tester for Car Fuse, Polarity, Resistance and Continuity Test, Wire Diagnostics, Battery Analysis
4.3 out of 5 stars
鈥
81
2 offers from
$24.29
#35
Gardner Bender CT6101 Sperry Continuity Tester, 1/Card, 5 Cards/Master , Yellow
4.3 out of 5 stars
鈥
1,364
1 offer from
$7.99
#36
MFL. 15-Plug Audio Cable Tester Line Finder Black 15-in-1 Cables Checker 10-Way Switch Wire Tracker with LED Indicators, Rectangular
4.7 out of 5 stars
鈥
680
1 offer from
$84.82
#37
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
4.7 out of 5 stars
鈥
196
4 offers from
$31.61
#38
allsun em415Pro Circuit Break Short Auto Finder Cable Wire Breaker Tracker DC Under 42V,12V Battery Diagnostics Wire Tracking
4.0 out of 5 stars
鈥
2,729
1 offer from
$39.90
#39
Joinfworld Car Fuse Tester Automotive Circuit Fault Probe Tester 20A 48V with Led Display & Front Lighting Car Relay Fuse Checker for Current Circuit Testing
3.1 out of 5 stars
鈥
15
1 offer from
$21.98
#40
NOYAFA NF-488 Network Cable Tester, POE Powered Ethernet Cable Tester, RJ45 Tester Kit for CAT5e/CAT6/CAT6a, RJ45 Continuity Check, Switch Loopback POE Detector, LAN Cable Tester Loop Test Tool
4.5 out of 5 stars
鈥
18
1 offer from
$54.98
#41
Network Ethernet Cable Tester for LAN RJ45 RJ45 CAT5 CAT5E CAT6 CAT6A CAT7, Ethernet Wire Tester Tool UTP/STP Continuity Test for Telephone Line Finder Home Repair
4.8 out of 5 stars
鈥
111
1 offer from
$16.97
#42
Automotive Electrical Open & Short Finder Circuit Tester Wire Tracer DC 6-42V Circuit Breaker Finder Short Circuit Detector for Car Truck Tractor Boat RV
3.6 out of 5 stars
鈥
21
1 offer from
$23.99
#43
Automotive Circuit Fault Probe Tester, Portable Cnbj 611 Tester, 20A 48V High-Precision Current Tester 2-in-1 Power Short Finder Car Relay Fuse Blade Checker with LED Display and Light
3.1 out of 5 stars
鈥
8
1 offer from
$24.99
#44
GAYA Grounding Tester Earthing for Grounding Products, Electric Outlet Testing Plug in, GFCI Test, Receptacle and Plug Testers, Circuit, Ground, GFCI Outlet, Socket Power Check
4.4 out of 5 stars
鈥
231
2 offers from
$12.99
#45
Gardner Bender GTK-2 Safety Kit, GVD-3504 Non-Contact Voltage Tester and GFI-3501 GFI Tester, 2-Piece
4.4 out of 5 stars
鈥
2,561
11 offers from
$22.62
#46
Haobase DC 6V/12V/24V Auto Truck Car Electrical Circuit Continuity Tester Test Light Pen Tool with Indicator Light
4.5 out of 5 stars
鈥
636
1 offer from
$13.99
#47
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
3.7 out of 5 stars
鈥
555
3 offers from
$53.99
#48
Linkstyle 2PCS Test Light, 3V-48V Digital LED Circuit Tester with Voltage Display, Auto Bidirectional Electrical Voltage Tester with Extended Spring Wire & Probe
4.2 out of 5 stars
鈥
426
1 offer from
$25.99
#49
Test Light Automotive, Circuit Tester 6V-12V-24V Car Electrical Pen with Alligator Clip Long Stainless Probe, Continuity Voltage Fuse Dual Color Polarity Indicator for Sedan, SUV,RV and Truck
4.9 out of 5 stars
鈥
8
1 offer from
$11.99
#50
Circuit Breaker Finder with LCD Display, GFCI Outlet Tester, 90-130V Electrical Circuit Tracer Tool with NCV Tset & Flashlight, Includes Carrying Case with Adapter, Alligator Clips
4.5 out of 5 stars
鈥
29
1 offer from
$59.99
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