Circuit Testers
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ATD® - Heavy-Duty Circuit TesterHeavy-Duty Circuit Tester by ATD®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels of durability...Easily checks 6 and 12V systemsDesigned to help to get your job done right$12.96 - $13.22In Stock - Ships within 24 hrs - Lisle® - Circuit TesterCircuit Tester by Lisle®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working condition with proven...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$6.33 - $23.24Availability Varies - Depends on Product Options
- Lisle® - Heavy-Duty Circuit TesterHeavy-Duty Circuit Tester by Lisle®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working condition...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$12.11 - $12.96In Stock - Ships within 24 hrs
- OTC® - Heavy-Duty Circuit TesterHeavy-Duty Circuit Tester by OTC®. Designed for testing electrical circuits and locating shorts, grounds, and open circuits.Checks 6- and 12-volt systemsBright red, slim style replaceable bulb$21.33 - $27.69Availability Varies - Depends on Product Options
- Standard® - Circuit TesterCircuit Tester by Standard®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working condition with...Handle illuminates when circuit is workingDesigned to help to get your job done right$7.27 - $18.15Availability Varies - Depends on Product Options
- Standard® - Handypack™ Circuit TesterHandypack™ Circuit Tester by Standard®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Finds open circuits, bad connections, or blown fusesHandle illuminates when circuit is working$5.94 - $11.06In Stock - Ships within 24 hrs
- TRC® - Continuity TesterContinuity Tester by TRC®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working condition with...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$29.41 - $35.80Availability Varies - Depends on Product Options
- Dorman® - Electrical Circuit TesterElectrical Circuit Tester by Dorman®. Test electrical circuits with confidence using this multi-function electrical tester. Made to test a variety of electrical parameters, it is constructed of quality materials to deliver reliable...Durable construction - this electrical multi-tester is made from quality materials to ensure reliable resultsVersatile shop tool - this multi-function tester can be used to confirm a variety of electrical system parameters$3.17 - $9.80In Stock - Ships within 24 hrs
- Dorman® - Electrical Continuity TesterElectrical Continuity Tester by Dorman®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working...Designed to help to get your job done rightManufactured utilizing the highest quality materials$3.14 - $6.06In Stock - Ships within 24 hrs
- S&G Tool Aid® - Heavy-Duty Circuit TesterHeavy-Duty Circuit Tester by S&G Tool Aid®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working...Designed to help to get your job done rightManufactured utilizing the highest quality materials$7.76 - $14.99In Stock - Ships in 24 to 48 hrs
- ATD® - Heavy-Duty Circuit Tester with 10' Coil Cord (5624)Heavy-Duty Circuit Tester with 10' Coil Cord (5624) by ATD®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers...New coil cord design for ease of useAcetate handle, coiled lead wire$12.96In Stock - Ships within 24 hrs
- ATD® - Heavy-Duty Circuit Tester with 5' Stright Cord (5513)Heavy-Duty Circuit Tester with 5' Stright Cord (5513) by ATD®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers...Easily checks 6 and 12V systems5 ft. heavy-duty lead$13.22In Stock - Ships within 24 hrs
- ATD® - Primary Circuit Tester (5500)Primary Circuit Tester by ATD®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels of durability and...Tests 6 and 12VLocates shorts, open circuits and grounds$5.91In Stock - Ships within 24 hrs
- ATD® - Profesional Cordles Circuit Tester (5503)Profesional Cordles Circuit Tester by ATD®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels of...Tests circuits from 3 to 28 Volts DCLED light and buzzer indicator$14.28In Stock - Ships within 24 hrs
- ATD® - Relay Circuit Tester Kit (5614)Relay Circuit Tester Kit by ATD®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels of durability and...Able to Test an entire circuit - from battery to component, including the relayAllows the technician to diagnose the problem without the use of a multimeter$200.14In Stock - Ships within 24 hrs
- Lisle® - "Handy Hooker" Circuit Tester (25600)"Handy Hooker" Circuit Tester by Lisle®. 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 12 volts. Alligator clip grounds...Designed to help to get your job done rightManufactured utilizing the highest quality materials$20.70In Stock - Ships within 24 hrs
- Lisle® - 6 to 12 V AC/DC Circuit Tester (26250)6 to 12 V AC/DC Circuit Tester (26250) by Lisle®. Quick check both AC and DC current up to 12 volts with power on. Helps locate shorts or breaks in wiring. Complete with insulated grounding clip.Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$6.33In Stock - Ships within 24 hrs
- Lisle® - 6 to 24 V Circuit Tester with Buzzer (28620)6 to 24 V Circuit Tester with Buzzer (28620) by Lisle®. Heavy-Duty Tester Signals with a Light and a Buzzer. Tests low voltage up to 28 volts. Spring loaded hook can be removed to use the probe tip only. Can also be used to check...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$23.24In Stock - Ships in 24 to 48 hrs
- Lisle® - Computer Safe Circuit Tester (24550)Computer Safe Circuit Tester by Lisle®. Safe for automotive computers. Won't damage sensitive electronic components. Draws les than 21 mA. at 12 volts DC. Operating range 3-28 volts. The red light indicates positive polarity, green...Designed to help to get your job done rightManufactured utilizing the highest quality materials$12.07In Stock - Ships within 24 hrs
- ATD® - 12 to 42 V Hybrid Circuit Tester (55042)12 to 42 V Hybrid Circuit Tester by ATD®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe working...For 12V & 42V Hybrid systems{:os:}Automatic Voltage Identification: BLUE LED for 12V and RED LED for 42V{:os:}Pointed probe tests through wire insulation{:os:}Computer and airbag safe{:os:}12' heat and oil resistant coiled cordDesigned to help to get your job done right$19.95In Stock - Ships within 24 hrs
- Lisle® - 6 to 12 V Heavy-Duty Circuit Tester (28400)6 to 12 V Heavy-Duty Circuit Tester (28400) by Lisle®. Quickly Tests Low Voltage up to 12 Volts. A heavy duty circuit tester for lifetime use. The probe, handle, cord and clamp are reinforced for extra durability. Comes with a strain...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$12.96In Stock - Ships within 24 hrs
- Lisle® - 6 to 24 V Heavy-Duty Circuit Tester (27430)6 to 24 V Heavy-Duty Circuit Tester (27430) by Lisle®. Quickly Tests Voltage up to 24 Volts. Heavy duty probe, cord and clamp. The probe is insulated with high-visibility shrink tubing to prevent the possibility of shorting the side of...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$12.11In Stock - Ships within 24 hrs
- Astro Pneumatic Tool® - 3 to 48 V DC Digital LCD Wide Range Circuit Tester (7764)3 to 48 V DC Digital LCD Wide Range Circuit Tester by Astro Pneumatic Tool®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the...Computer Safe with Backlit LCD display for accurate voltage readoutsSmall, ergonomic design for easy use in confined areas$25.06In Stock - Ships in 24 to 48 hrs
- Astro Pneumatic Tool® - Cordless Circuit Tester (7760)Cordless Circuit Tester by Astro Pneumatic Tool®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels...This unit does not require ground wire or clip and is safe with ECMs, Sensors, Transducers, Airbags, etc.Designed to be used on DC powered circuits with voltages between 3 and 28 volts$11.67In Stock - Ships in 24 to 48 hrs
- Audiopipe® - Pipeman's Heavy-Duty Circuit Tester (ICT112)Pipeman's Heavy-Duty Circuit Tester by Audiopipe®. Failure to properly maintain the electrical system can result in its damage and costly repairs. Do everything right the first time. Inspect and keep the electrical system in a safe...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$10.99In Stock - Ships in 24 to 48 hrs
- CTA® - Low-Voltage Standard Circuit Tester (3024)Low-Voltage Standard Circuit Tester by CTA®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Tests for shorts, grounds, open circuitsBroken wires and bad connections in 6 and 12 volt systems$5.91In Stock - Ships in 24 to 48 hrs
- Cal-Van Tools® - Heavy-Duty Circuit Tester (70)Heavy-Duty Circuit Tester by Cal-Van Tools®. Designed to meet the needs of profesional technicians, this high-quality product by Cal-Van Tools will make your tough jobs easier and more comfortable. It is made from highly durable...Designed to help to get your job done rightManufactured utilizing the highest quality materials$13.55In Stock - Ships in 24 to 48 hrs
- Camco® - Water Heater Continuity Tester (10023)Water Heater Continuity Tester by Camco®. Test your water heater elements and circuits with ease. If you're looking for a quality product that will serve you for years to come, look no further. Get your job done right every time with...Developed to comply with rigorous quality standardsCutting-edge innovations, reliable design, solid value$14.55In Stock - Ships within 24 hrs
- Dorman® - 12 V to 250 V AC/DC Screwdriver Type Analog Circuit Tester (86614)12 V to 250 V AC/DC Screwdriver Type Analog Circuit Tester by Dorman®. Dorman offers a comprehensive line of Electrical Multi-Testers for almost any automotive repair. All our Electrical Multi-Testers are constructed of high-quality...Testers light up and/or buzz to indicate testing resultDurably designed for a long service life$8.26In Stock - Ships within 24 hrs
- Install Bay® - Computer-Safe Circuit Tester (IB27450)Computer-Safe Circuit Tester by Install Bay®. If you're looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers unmatched levels of...Works Without Damaging Sensitive Electronic Components.Safe For Use On 12 Volt Automotive Computer Circuits.$27.16In Stock - Ships in 24 to 48 hrs
If you are a professional electrician, your job demands from you to check a considerable variety of electrical circuitry. Circuit testers are specifically created with the aforementioned purpose in mind. If you don’t own any of these instruments yet, then the market is here to help. Some of these useful tools are created to perform only a single function, however, the majority of them are multifunctional devices specifically designed to perform different kinds of electrical testing. The instruments are utilized to check DC and AC voltage, amperage, short and open circuits, continuity, polarity, and so on.
Such tools work with a wide range of voltages, beginning with 0 and ending with 300 Volts. Also, they can measure resistance. Such articles come with easy-to-read digital screens which display all the information in a clear and concise manner. Our testers are offered in water- and dust-proof cases, with batteries that can last for hundreds of hours on end. Their operating temperature ranges from 14°F to +120°F approximately. Having compact dimensions and light weight, our tools are easy to transport and use. Circuit testers that we carry will come in real handy regardless of whether you are a physics student or an auto mechanic, hence you can shop with confidence!
