Circuit Testers

Tools and Equipment Subcategories

 
26250 from Lisle

Lisle 26250 Low Circuit Tester

Brand: Lisle
Auto Part #: 26250
Features and Benefits: Quick check both AC and DC current up to 28 volts with the power on Helps locate shorts or breaks in wiring Complete with insulated grounding clip Skin packed Shipping wt. 3 oz. Lifetime warranty does... more

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Starting At
$4.25

28400 from Lisle

Lisle 28400 Heavy Duty Circuit Tester Up To 28 Volt

Brand: Lisle
Auto Part #: 28400
Features and Benefits: A heavy duty circuit tester for lifetime use The probe, handle, cord and clamp are reinforced for extra durability Comes with a strain relief spring on the cord Skin-packed Shipping weight 7 oz.Lisle's heavy... more

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Starting At
$8.60

29500 from Lisle

Lisle 29500 High-Low Circuit Tester

Brand: Lisle
Auto Part #: 29500
Features and Benefits: Checks both low voltage and spark plug wires The low-side checks AC and DC current up to 28 volts with an power on The high-side checks spark plug wires without piercing Complete with insulated clip... more

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Starting At
$7.69

24550 from Lisle

Lisle 24550 Computer Safe Circuit Tester

Brand: Lisle
Auto Part #: 24550
Features and Benefits: Safe for automotive computers Won’t damage sensitive electronic components Draws less than 21mA at 12 volts DC Operating range 3-28 volts The red light indicates positive polarity, green indicates... more

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Starting At
$8.50

28640 from Lisle

Lisle 28640 The Ultimate Circuit Tester Kit

Brand: Lisle
Auto Part #: 28640
Features and Benefits: Heavy duty tester signals with a light and buzzer Tester kit tests low voltage up to 28 volts Finds electrical shorts, checks polarity, detects battery drain, and checks circuits from a distance Heavy duty... more

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Starting At
$17.23

3410 from Equus

Test Light / Circuit Tester LED

Brand: Equus
Auto Part #: 3410
Features and Benefits Helps to quickly identify if there is voltage present on wiring and circuits Ergonomic grip design with 6-foot test leads Transparent handle shows bright LEDs to identify connections Green = Ground Present... more

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Starting At
$8.97

KTI-72780 from K Tool

K Tool International Circuit Tester - KTI72780

Brand: K Tool
Auto Part #: KTI-72780
Features and Benefits: Tester features 5' heavy duty flexible wire, ground clips, tempered probe and replacement bulb Works in 6 or 12 volt systems Spring strain relief on cord 1 yr warranty on material and workmanship more

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Starting At
$8.69

3420 from Equus

Innova Smart Test Light

Brand: Equus
Auto Part #: 3420
Features and Benefits Designed to safely check voltage and/or ground on several electronic systems, including wiring, fuses, battery, cabling, sensors, switches, and more Features ergonomic grip design for comfort and safety Connects... more

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Starting At
$15.00

7893 from Innovative Products Of America

7 Way Flat Pin Trailer Circuit Tester

Auto Part #: 7893
Features and Benefits: Quickly and easily test trailer circuits on most light to medium duty trucks and campers Tests vehicle circuits on 7 Flat/Spade Pin connections - quickly identifies faulty circuits Made from LEDs and ABS... more

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Starting At
$19.83

8016 from Innovative Products Of America

Fuse Saver Master Kit

Auto Part #: 8016
Features and Benefits: Resettable breaker handles for use on any circuit Quick disconnect for on the spot repairs BuzzAlert™ provides an audible alert when the circuit triggers Includes 5, 10, 15, 20 and 30 AMP breaker... more

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Starting At
$139.42

KDS126 from KD Tools

High/Low Voltage 6V & 12V Circuit Tester

Brand: KD Tools
Auto Part #: KDS126
Features and Benefits:Check 6 and 12V circuits for voltage and spark plugs for spark. To use, ground the clip and touch the probe to the point being tested. The tester bulb will light it voltage is present. To use as a spark tester, screw the... more

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Starting At
$11.01

121 from Thexton

Thexton 121 Wirehawk Circuit Tester

Brand: Thexton
Auto Part #: 121
121 Wirehawk® Circuit Tester Features and Benefits: Fast, handy For 12V/24V circuits Wirehawk® requires just one hand to test circuits in hard-to-reach areas. Works two ways: Captures and pierces wire with unique hook design or can be... more

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Starting At
$13.04

27000 from SG Tool Aid

Heavy Duty Circuit Tester

Auto Part #: 27000
Features and Benefits: The best quality electrical circuit tester available for checking 6 and 12 volt systems Has heavy duty battery clip 5' of tough, flexible, heavily insulated rubber wire is retained in spring supported strain relief... more

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Starting At
$1.26

27100 from SG Tool Aid

Extra Long Heavy Duty Circuit Tester - Blue

Auto Part #: 27100
Features and Benefits: Specially designed to enable technician to test hard to reach circuits that would not be accessible with standard circuit testers Use to test around hot engine components and under the dashboard Features extra... more

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Starting At
$22.07

27250 from SG Tool Aid

Heavy Duty Circuit Tester With 6-1/2" Long Probe and Retractable Wire

Auto Part #: 27250
Features and Benefits: Features an extra long wire that stretches up to 12 feet for use, then automatically retracts Quickly and easily check electrical circuits and accessories on 6 and 12 volt systems Supersharp probe Heavy duty... more

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Starting At
$14.31

29000 from SG Tool Aid

Heavy Duty Mini Circuit Tester

Auto Part #: 29000
Features and Benefits: Special compact design is especially valuable because this circuit tester will fit and work in confined, crowded areas like under the hoods and dashboards of modern cars and trucks Use for troubleshooting 6 and 12... more

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Starting At
$4.89

25600 from Lisle

Lisle 25600 "Handy Hooker" Circuit Tester

Brand: Lisle
Auto Part #: 25600
Features and Benefits: Hooded probe protects your fingers and automatically centers the wire Small size allows easy use even in the tightest places Quickly test low voltage up to 28 volts Alligator clip grounds tester... more

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Starting At
$8.99

32900 from Lisle

Lisle 32900 Heavy Duty Circuit Tester / Jumper

Brand: Lisle
Auto Part #: 32900
Features & Benefits: Two tools in one - works as a circuit tester and jumper wire The probe, handle, cord and clamp are reinforced for durability Comes with a strain relief spring on the cord Heavy duty circuit tester for checking... more

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Starting At
$16.72

KTI-72765 from K Tool

K Tool International Circuit Test Michigan - KTI72765

Brand: K Tool
Auto Part #: KTI-72765
Features and Benefits: 5" overall length including 2" tempered probe Works on 6 or 12 volt systems 60" heavy duty flexible wire lead with ground clip 1 yr warranty on material and workmanship more

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Starting At
$5.46

KTI-72770 from K Tool

K Tool International Circuit Tester - KTI72770

Brand: K Tool
Auto Part #: KTI-72770
Features and Benefits: Tester features 48" extra long leads Works on 6 or 12 Volt systems 1 yr warranty on material and workmanship

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Starting At
$3.51