Circuit Testers
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Klein Tools®90 V to 250 V General Purpose Twin-Lead Circuit Tester (69136)90 V to 250 V General Purpose Twin-Lead Circuit Tester by Klein Tools®. The General Purpose Twin-Lead tester tests voltage in 90-250 volt range for AC/DC. Know instantly if the circuit is live when the tester lights up. The handy pocket...Tests voltage in AC or DCNeon lamp glows indicating live circuit$7.53 - Lisle®Circuit Tester Ultimate Kit (28640)Circuit Tester Ultimate Kit by Lisle®. The tester kit tests low voltage up to 28 volts. Also finds electrical shorts, checks polarity, detects battery drain, and checks circuits from a distance. Heavy-duty coil cord extends over 8 feet....Designed to help to get your job done rightManufactured utilizing the highest quality materials$30.84
- OEM Tools®5 to 30 V DC Digital Circuit Tester (24451)5 to 30 V DC Digital Circuit Tester by OEM Tools®. The OEMTOOLS Digital Display Circuit Tester is used for reading the voltage measurement from 5V to 30V of 6, 12, and 24 Volt systems.Detect Voltage, Power, Ground and Circuit ConditionDisplay Provides Precise Voltage$43.10
- OTC®6 to 12 V Heavy-Duty Circuit Tester (3636)6 to 12 V Heavy-Duty Circuit Tester (3636) by OTC®. Designed for testing electrical circuits and locating shorts, grounds, and open circuits.12' heavy-duty, red coil cord leadChecks 6- and 12-volt systems$27.69
- OTC®6 to 12 V Heavy-Duty Extra-Long Circuit Tester (3639)6 to 12 V Heavy-Duty Extra-Long Circuit Tester by OTC®. Long 7" probe shank allows access to difficult to reach areas for testing electrical circuits and locating shorts, grounds, and open circuits.12' heavy-duty, red coil cord leadChecks 6- and 12-volt systems$28.73
- RoadPro®6 to 12 V Heavy-Duty Electrical Tester (SST-80151)6 to 12 V Heavy-Duty Electrical Tester by RoadPro®. This heavy-duty electrical tester tests circuits, lights and fuses and lights on contact with live circuit.Tests circuits, lights and fusesLights on contact with live circuit$6.54
- Standard®Circuit Tester with Probe Hook (WTT115)Circuit Tester with Probe Hook (WTT115) 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...Probe pierces insulation to contact circuit, finds open circuits, blown fuses, and bad connectionsHandle illuminates when circuit is working$18.15
- Standard®Continuity Tester (WTT112)Continuity 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...Tests circuits with power offUse to locate broken wires, bad connections, open circuits$7.29
- Standard®Pro Circuit Tester (WTT111)Pro Circuit 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...Finds open circuitsBlown fuses, and bad connections$12.91
- Standard®Pro Continuity Tester (WTT110)Pro Continuity 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...Tests circuits with power offUse to locate broken wires, bad connections, open circuits$12.05
- Sunex®Circuit Tester (4001)Circuit Tester by Sunex®. All products are trusted for their design and engineering, and Sunex® will continue to equip customers with high quality tools at the best value thanks to rich heritage of developing customer solutions,...Developed using innovations to effectively serve the automotive aftermarketGuaranteed to provide the ultimate comfort and perform as hard as you do$15.67
- Cal-Van Tools®6 to 24 V Logic Light Circuit Tester (81)6 to 24 V Logic Light Circuit Tester by Cal-Van Tools®. This self-powered Logic Light removes the guesswork when testing live and non-live 6V, 12V and 24V DC electrical systems. It is simple to use and has patented LED edge-lighting to...Patented LED edge-lighting illuminates the handle red when power has been detected and green when groundedInternal power source allows user to test live and non-live DC systems (battery included)$25.97
- Dorman®12 V Continuity Tester (86588)12 V Continuity 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 results.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$5.44
- Dorman®18 to 36 V High Voltage Circuit Tester (86589)18 to 36 V High Voltage 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...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$5.44
- K-Tool International®3 to 30 V DC Cordless Dual Polarity Circuit Tester (CHT504)3 to 30 V DC Cordless Dual Polarity Circuit Tester by K-Tool International®. Quickly detect DC voltage on automobiles, trucks and motorcycles ranging from 3-30V DC without the need for a connection to ground using the new xtra duty...Xtra Duty Cordless Circuit Tester for quick detection of DC Voltage on autos, trucks and motorcycles from 3-30V DC test rangePolarity; Audible beep and dual color LED indicates red for DC Power and green for Ground reverse polarity testing$38.87
- K-Tool International®6 to 12 V Blue Heavy-Duty Circuit Tester (KTI-72790)6 to 12 V Blue Heavy-Duty Circuit Tester (KTI-72790) by K-Tool International®. 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...Specially designed to enable technicians to test hard to reach circuits that would not be accessible with standard testersFeatures extra long, colored, insulated 7-1/2" probe and 60" heavy gauge flexible wire$7.42
- K-Tool International®6 to 12 V Heavy-Duty Circuit Tester (KTI-72780)6 to 12 V Heavy-Duty Circuit Tester (KTI-72780) by K-Tool International®. 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...Tester features 5' heavy duty flexible wire, ground clips, tempered probe and replacement bulbWorks in 6 or 12 volt systems$13.10
- K-Tool International®6 to 12 V Red Heavy-Duty Circuit Tester (KTI-72792)6 to 12 V Red Heavy-Duty Circuit Tester (KTI-72792) by K-Tool International®. 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...Specially designed to enable technicians to test hard to reach circuits that would not be accessible with standard testersFeatures extra long, colored, insulated 7-1/2" probe and 60" heavy gauge flexible wire$16.48
- K-Tool International®6 to 12 V Yellow Heavy-Duty Circuit Tester (KTI-72791)6 to 12 V Yellow Heavy-Duty Circuit Tester (KTI-72791) by K-Tool International®. 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...Specially designed to enable technicians to test hard to reach circuits that would not be accessible with standard testersFeatures extra long, colored, insulated 7-1/2" probe and 60" heavy gauge flexible wire$6.72
- K-Tool International®6 to 24 V Heavy-Duty Circuit Tester (KTI-72782)6 to 24 V Heavy-Duty Circuit Tester (KTI-72782) by K-Tool International®. 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...Check electrical circuits and accessoriesFor use on 6, 12 and 24 volt systems$11.57
- S&G Tool Aid®18 to 36 V AC/DC Heavy-Duty Circuit Tester (21300)18 to 36 V AC/DC Heavy-Duty Circuit Tester (21300) 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...Checks AC and DC wiring up to 36 voltsUse to check series-parallel switches and solenoids on tractor-trailer starter systems$10.35
- S&G Tool Aid®6 to 12 V Audio Circuit Tester (25500)6 to 12 V Audio 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...Handy device for locating short and open circuitsHorn sounds when circuit is complete$26.01
- S&G Tool Aid®6 to 12 V Check-Point Circuit Tester (21000)6 to 12 V Check-Point 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...Most widely used automotive circuit testerQuickly checks all 6 and 12 volt systems$8.93
- TRC®Continuity Tester for Coax Cable (M500CX4)Continuity Tester for Coax Cable (M500CX4) 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...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$29.41
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!
