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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
Tools & Testers
Ammeters
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Circuit Testers
(Current)
Multi Testers
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麻豆区 in Circuit Testers
#1
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
9,428
5 offers from
$82.59
#2
KAIWEETS Circuit Breaker Finder with LCD Display, GFCI Outlet Tester, Electrical Circuit Tracer Tool with NCV Test & Flashlight, Includes Carrying Case and Adapters- KT301P
4.6 out of 5 stars
鈥
477
1 offer from
$79.99
#3
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
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296
4 offers from
$79.99
#4
Gardner Bender GRT-3500 Standard Outlet Tester
4.6 out of 5 stars
鈥
4,007
7 offers from
$15.24
#5
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
4.4 out of 5 stars
鈥
151
1 offer from
$93.99
#6
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)
4.2 out of 5 stars
鈥
476
4 offers from
$77.99
#7
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)
4.5 out of 5 stars
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724
1 offer from
$18.99
#8
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
4.1 out of 5 stars
鈥
108
1 offer from
$41.21
#9
7865L 7-Way Round Pin Tractor Trailer Circuit Chaser, Truck 7 Round Pin Plug Circuit Tester
4.5 out of 5 stars
鈥
21
1 offer from
$35.99
#10
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
170
1 offer from
$103.20
#11
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
3.9 out of 5 stars
鈥
478
1 offer from
$79.99
#12
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
377
1 offer from
$22.99
#13
Power Circuit Probe Tester,6-24V DC Circuit Tester Automotive,Test Light,Fuse & Voltage Tester,Automotive Short Circuit Breake Finder Electrical Tools (Black) (Black)
4.3 out of 5 stars
鈥
253
2 offers from
$29.99
#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
4.7 out of 5 stars
鈥
166
1 offer from
$129.00
#15
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
628
2 offers from
$13.99
#16
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
209
2 offers from
$11.69
#17
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
4.4 out of 5 stars
鈥
127
1 offer from
$79.99
#18
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
5.0 out of 5 stars
鈥
1
1 offer from
$23.99
#19
AstroAI Circuit Breaker Finder with GFCI Outlet Tester, Electrical Tester Tool for Home/Workshop Circuit Tracing, Quickly Locates Breakers with Indicators, Digital Breaker Finder
4.6 out of 5 stars
鈥
141
1 offer from
$79.99
#20
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
122
1 offer from
$18.99
#21
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
1,952
1 offer from
$73.99
#22
AEIMIAIDE 2 Pcs DC 6V/12V/24V Auto Truck Car Electrical Circuit Continuity Tester Test Light Pen Tool with Indicator Light for Low Voltage Systems, Fuse, Switch, Wires
4.2 out of 5 stars
鈥
18
1 offer from
$16.99
#23
NOYAFA NF-824 Rechargeable Circuit Breaker Detector with LCD Display and GFCI Outlet Tester 90-230V AC Circuit Breaker Finder Tool NCV Electrical Circuit Tracer
4.2 out of 5 stars
鈥
117
1 offer from
$80.99
#24
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
2,711
2 offers from
$39.90
#25
A and E Hand Tools 1138 Magnetic Retractable Test Lead
4.5 out of 5 stars
鈥
571
4 offers from
$65.61
#26
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
64
1 offer from
$12.99
#27
Automotive Electrical Open & Short Finder Circuit Tester Wire Tracer DC 6-42V Circuit Breaker Finder Short Circuit Detector for Car Truck Tractor Boat RV
3.9 out of 5 stars
鈥
16
1 offer from
$23.99
#28
VDIAGTOOL V210 Automotive Electrical Open & Short Finder, Car Power Circuit Probe Tester Wire Tracer Detector Tool, DC 6V-42V Wire Breaker Finder, Cable Locator with Receiver Probe
4.2 out of 5 stars
鈥
665
2 offers from
$44.99
#29
Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets
4.7 out of 5 stars
鈥
13,929
7 offers from
$26.98
#30
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
277
1 offer from
$26.99
#31
Mcbazel Network Cable Tester for RJ11/RJ45 鈥 Ethernet & Phone Line Tester with Smart Indicator Display, Wire Mapping & Short Circuit Detection
4.3 out of 5 stars
鈥
134
1 offer from
$9.99
#32
Huepar 2-in-1 GFCI Outlet Tester with Digital LCD Display, NCV GFCI 30-150V VoltageTester, Standard 3-Wire Receptacle Socket Tester, Detects Common Home and Office Wiring Problems (CA Plug)
4.9 out of 5 stars
鈥
13
1 offer from
$35.99
#33
Outlet Circuit Testers for Grounding Products 锛孍lectrical Receptacle Tester for North American Outlets Includes 7 Visual Indications and Wiring Legend
4.6 out of 5 stars
鈥
26
2 offers from
$9.86
#34
Power Probe PWP-PPECT3000 - ECT3000 Short/Open Electrical Circuit Tester
4.6 out of 5 stars
鈥
721
7 offers from
$264.31
#35
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
68
1 offer from
$16.97
#36
Klein Tools ET310KIT AC Circuit Breaker Finder Kit, Electric Tester, GFCI Tester, Leads, Adapters and Case
4.7 out of 5 stars
鈥
865
17 offers from
$139.05
#37
Power Probe PPFUSE Fuse Monitor - Circuit Tester for Mini, Maxi & ATC Fuses 鈥 Live Current Readings Up to 80A 鈥 Replaceable Tips, and Built-in Flashlight
4.7 out of 5 stars
鈥
119
14 offers from
$216.98
#38
Power Probe Short/Open Circuit Finder NO Box Car Test Electrical Circuit Tester
4.4 out of 5 stars
鈥
749
11 offers from
$191.87
#39
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
36
1 offer from
$71.99
#40
Fluke BK120 SmartTrace Breaker Finder and Socket Tester
4.6 out of 5 stars
鈥
412
15 offers from
$129.72
#41
Kefly 7-Way Round Pin Trailer Truck Circuit Plug Tester Replace 7865L, Trailer Tractor Light Tester
4.6 out of 5 stars
鈥
169
6 offers from
$31.61
#42
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
108
1 offer from
$11.69
#43
VDIAGTOOL V200 PRO Upgrade Kit Automotive Power Circuit Probe Tester with 30PCS Back Probe Kit, 12/24V Electrical Short and Open Circuit Finder AC/DC Voltage Test Activating Component 40Ft Cable
4.5 out of 5 stars
鈥
239
2 offers from
$219.99
#44
VDIAGTOOL V200 Pro Automotive Power Circuit Probe Tester, Broken Wire Detector Tool, 12/24V Car Open Short Circuit Breaker Finder, Electrical Wire Cable Tracer, AC/DC Relay Fuse Continuity Testing Kit
4.5 out of 5 stars
鈥
592
3 offers from
$149.99
#45
Autel Powerscan Ps100 Electrical System Tester Ps 100 Circuit Tester with 20ft Cable, Built-in Circuit Breaker, Easy to Read AC/DC Current Resistance, Test Continuity/Probe/Sensor Signal
4.4 out of 5 stars
鈥
152
2 offers from
$103.20
#46
Brileine RJ45 Network Cable Tester with Mini Wire Stripper, Ethernet Cable Tester Tool for RJ11/RJ12/RJ45, Cat5e/Cat6/Cat7, POE Test, Continuity & Short Circuit Detector (Battery Not Included)
4.2 out of 5 stars
鈥
239
1 offer from
$12.99
#47
Yaetek Multi Function Automotive Circuit Test Leads Kit Electrical Testers Auto Diagnostic Tools Wire Connectors Adapter Cables Set
4.0 out of 5 stars
鈥
36
1 offer from
$129.99
#48
Klein Tools CL120KIT Clamp Meter Electrical Test Kit, AC Auto Ranging 400 Amp, Backlit Display, Includes GFCI Tester-Line Splitter-Pouch-Leads-3 x AAA
4.6 out of 5 stars
鈥
825
6 offers from
$134.23
#49
CNBJ-611 Automotive Fuse Current Tester, Car Circuit Tester, Car Leakage Analyzer Fault Testing Tool with Blue Backlight LCD Display Front Illumination Light
1 offer from
$18.99
#50
Light Keeper PRO 01201 The Complete Tool for Fixing Miniature Light Sets
3.8 out of 5 stars
鈥
9,984
6 offers from
$32.99
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