Circuit Testers

Displaying 1 to 36 (of 182 products)
(image for) Electronic Specialties

(image for) #192 DIAGNOSTIC RELAY BUDDY(R) 12/24

#192 DIAGNOSTIC RELAY BUDDY(R) 12/24
Electronic Specialties 192

Your Price: $72.74
(image for) Kastar

(image for) $12V CIRCUIT TESTER*

$12V CIRCUIT TESTER*
Kastar 82A

Your Price: $11.98
(image for) Cal-van Tools

(image for) *USE CV84

*USE CV84
Cal-van Tools MIDCV84

Your Price: $46.05
(image for) The Best Connection

(image for) 10 Amp 12V Black Round Rocker

10 Amp 12V Black Round Rocker
The Best Connection 2700J

Your Price: $6.01
(image for) The Best Connection

(image for) 10 Amp 12V Red Round Rocker

10 Amp 12V Red Round Rocker
The Best Connection 2700-2J

Your Price: $6.01
(image for) S & G Tool Aid

(image for) 12/24/48 Volt Circuit Tester

12/24/48 Volt Circuit Tester
S & G Tool Aid 28200

Your Price: $27.28
(image for) Waekon Industries

(image for) 12V Bi-Pin Replacement Bulbs - SST Test Light (5-Pack)

12V Bi-Pin Replacement Bulbs - SST Test Light (5-Pack)
Waekon Industries SST-08P5

Your Price: $25.87
(image for) OTC Tools and Equipment

(image for) 12V-24V Truck Circuit Tester

12V-24V Truck Circuit Tester
OTC Tools and Equipment 3642

Your Price: $40.05
(image for) Electronic Specialties

(image for) 187 LOADpro® & Back Probe Kit

187 LOADpro® & Back Probe Kit
Electronic Specialties 187

Your Price: $95.91
(image for) Power Probe

(image for) 2PK ALLIGATOR CLIP

2PK ALLIGATOR CLIP
Power Probe PPTK0023

Your Price: $10.16
(image for) Innovative Products of America

(image for) 4 & 5 Pin Vehicle Trailer Harness Tester

4 & 5 Pin Vehicle Trailer Harness Tester
Innovative Products of America 7866

Your Price: $18.80
(image for) Power Probe

(image for) 5 VOLT ADAPTER

5 VOLT ADAPTER
Power Probe PPT5VA01

Your Price: $40.76
(image for) Waekon Industries

(image for) 5/16" Female Snap-Lock Adapter

5/16" Female Snap-Lock Adapter
Waekon Industries F7-AS

Your Price: $25.45
(image for) Electronic Specialties

(image for) 550 EV Insulation Tester

550 EV Insulation Tester
Electronic Specialties 550

Your Price: $249.34
(image for) CTA Manufacturing Corp.

(image for) 5K POTENTIOMETER

5K POTENTIOMETER
CTA Manufacturing Corp. 7662XS01

Your Price: $11.41
(image for) Cal-van Tools

(image for) 6-12-24 LCD TESTER

6-12-24 LCD TESTER
Cal-van Tools 78

Your Price: $50.67
List Price: $71.35
29% off
(image for) Electronic Specialties

(image for) 635 CATIII Automotive Test Lead Set

635 CATIII Automotive Test Lead Set
Electronic Specialties 635

Your Price: $41.81
(image for) Waekon Industries

(image for) 721-OHB TFI EECIV IGITION ANALYZER*

721-OHB TFI EECIV IGITION ANALYZER*
Waekon Industries 4530

Your Price: $409.39
(image for) Waekon Industries

(image for) 76600 Hi-vis VoltPRO

76600 Hi-vis VoltPRO
Waekon Industries 76600

Your Price: $202.53
(image for) Thexton Mfg Co

(image for) 90 Degree Electrical Back Probe Kit

90 Degree Electrical Back Probe Kit
Thexton Mfg Co 490-90

Your Price: $26.59
(image for) S & G Tool Aid

(image for) 90° IAC Test Light

90° IAC Test Light
S & G Tool Aid 36345

Your Price: $18.94
(image for) Waekon Industries

(image for) ABS Sensor Pinpoint Tester

ABS Sensor Pinpoint Tester
Waekon Industries 20560

Your Price: $388.31
(image for) Waekon Industries

(image for) Adapter # 2 White (includes "A" Spindle)

Adapter # 2 White (includes "A" Spindle)
Waekon Industries 3880-031PA

Your Price: $36.41
(image for) Waekon Industries

(image for) Adapter #2 White F/Ford 150

Adapter #2 White F/Ford 150
Waekon Industries 03880-031PA

Your Price: $33.67
(image for) Waekon Industries

(image for) ADAPTER 3/8-24 FTG(2 PER SET)

ADAPTER 3/8-24 FTG(2 PER SET)
Waekon Industries B13

Your Price: $35.26
(image for) Waekon Industries

(image for) Adapter M10 X 1.25 FTG(2 PER SET)

Adapter M10 X 1.25 FTG(2 PER SET)
Waekon Industries B20

Your Price: $35.26
(image for) Waekon Industries

(image for) Adapter M10 X 1.5 FTG(2 PER SET)

Adapter M10 X 1.5 FTG(2 PER SET)
Waekon Industries B15

Your Price: $14.50
(image for) Waekon Industries

(image for) Adapter M14 X 1.5

Adapter M14 X 1.5
Waekon Industries O10-AS

Your Price: $17.89
(image for) Waekon Industries

(image for) ADAPTER M6-0.9 FTG(2 PER SET)

ADAPTER M6-0.9 FTG(2 PER SET)
Waekon Industries B22

Your Price: $35.26
(image for) Waekon Industries

(image for) ADAPTER XXX

ADAPTER XXX
Waekon Industries F12A

Your Price: $26.29
List Price: $32.21
18% off
(image for) Astro Pneumatic

(image for) Astro Pneumatic 7761 Auto Circuit Tester for AC/DC Systems

Astro Pneumatic 7761 Auto Circuit Tester for AC/DC Systems
Astro Pneumatic 7761

Your Price: $7.80
(image for) Electronic Specialties

(image for) ATC Fuse Buddy Current Loop

ATC Fuse Buddy Current Loop
Electronic Specialties 308B

Your Price: $16.34
(image for) Lock Technology LTI by Milton

(image for) Auto Grounds Keeper Electrical Ground

Auto Grounds Keeper Electrical Ground
Lock Technology LTI by Milton 525

Your Price: $19.14
(image for) S & G Tool Aid

(image for) Automotive Logic Probe - Heavy Duty

Automotive Logic Probe - Heavy Duty
S & G Tool Aid 28000

Your Price: $14.71

(image for) Automotive Relay Bypass Switch 9036-1

Automotive Relay Bypass Switch 9036-1
9036-1

Your Price: $15.15
(image for) Thexton Mfg Co

(image for) Backprobe Kit

Backprobe Kit
Thexton Mfg Co 490

Your Price: $26.40
Displaying 1 to 36 (of 182 products)

Circuit Testers

Circuit testers are indispensable tools for automotive professionals, offering precision and efficiency in diagnosing and repairing electrical systems. These tools are crucial for troubleshooting common issues like shorts, open circuits, and faulty relays, helping to ensure the reliable operation of a vehicle's electrical components. Whether you're working on automotive, heavy-duty, marine, agricultural, or industrial equipment, circuit testers simplify the process of identifying and addressing electrical faults, saving time and preventing guesswork. Modern circuit testers encompass a wide variety of designs and features tailored to fit different applications. From compact tools, like the OTC Mini Circuit Tester with its slim ergonomic design and heavy-duty stainless steel probe, to advanced devices like the Power Probe III Circuit Tester, equipped with integrated voltmeters and bumper-to-bumper testing capabilities, these tools offer exceptional versatility. Specialized diagnostic kits, such as the Electronic Specialties Relay Buddy 12/24 Pro, allow mechanics to test both standard 12-volt and heavy-duty 24-volt relays, providing real-time feedback and diagnostic trouble codes for precise problem identification. For manual controls and override functionality, tools like the Relay Bypass Kit are invaluable for testing components like fuel pumps and fan motors, ensuring an efficient and accurate diagnosis. With features like durable housing, long leads, and compatibility with a range of voltage systems, circuit testers reduce downtime and improve accuracy. These tools are an essential part of any technician’s arsenal, streamlining the troubleshooting process while enhancing safety and performance within electrical repair tasks. Empower your workshop with circuit testers, and experience seamless diagnostics for today’s complex automotive systems.