Semi Truck Electrical System Testers
- CTA®6 V/12 V/24 V Computer-Safe Logic Tester (3031)Universal 6 V/12 V/24 V Computer-Safe Logic Tester by CTA®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...High impedance tester protects computer circuitry, drawing less than 7 milliampsDual color LED indicates red for power and green for ground$21.10
- CTEK®Comfort Indicator Pigtail (56-564)Universal Comfort Indicator Pigtail by CTEK®. 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...An INDICATOR is the easiest way to monitor the charge in your batteryAn accurate voltage reading for your battery is displayed two hours after you’ve used your vehicle$11.51
- CTEK®Comfort Indicator with Cig Plug Connection (56-870)Universal Comfort Indicator with Cig Plug Connection by CTEK®. 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...Charge your battery through your vehicles 12v socketLights give you status of battery - green, yellow, red$17.28
- Cal-Van Tools®12 V Quick Ripple Tester (73)Universal 12 V Quick Ripple Tester by Cal-Van Tools®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs, delivering...The Quick Ripple Tester is designed to easily and efficiently test alternators for a variety of issues including ripple through the DC outlet cigarette lighterAllows the user to test an alternator for bad diodes bad stators and intermittent diodes or stators without ever lifting the hood$58.00
- Cal-Van Tools®12 V/24 V Pro Relay Circuit Tester (76)Universal 12 V/24 V Pro Relay Circuit Tester by Cal-Van Tools®. The 76 Relay Circuit Pro is a tool that can test an entire circuit from the battery to the component in question as well as determining if the relay itself is functioning...Designed for your maintenance needsMade from high-grade material for a long lifespan$180.48
- Dorman®1" Insulated Alligator Clips (85650)Universal 1" Insulated Alligator Clips by Dorman®. Dorman offers a comprehensive line of Alligator Clips for almost any automotive electrical repair. All Alligator Clips are constructed of high-quality materials for long-lasting...Conveniently packaged in a variety of piece counts to assist with both small and large projectsAlso suitable for a broad range of household, industrial and commercial uses$1.73
- Dorman®1-1/2" Alligator Clip with Screw (85652)Universal 1-1/2" Alligator Clip with Screw by Dorman®. Dorman offers a comprehensive line of Alligator Clips for almost any automotive electrical repair. All Alligator Clips are constructed of high-quality materials for long-lasting...Conveniently packaged in a variety of piece counts to assist with both small and large projectsAlso suitable for a broad range of household, industrial and commercial uses$1.90
- Dorman®10' Test Leads (84610)Universal 10' Test Leads by Dorman®. Dorman's retractable test leads are indispensable for having on hand in the shop or the garage. Save time by keeping them visible and available: the magnetic backing on the case firmly affixes to...Essential for reliable testing of electrical circuitsEasy to use$9.51
- Dorman®12 V Alternator and Battery Tester (84502)Universal 12 V Alternator and Battery Tester by Dorman®. Dorman offers a comprehensive line of Electrical Multi-Testers for almost any automotive repair. All Electrical Multi-Testers are constructed of high-quality materials for...Testers light up and/or buzz to indicate testing resultDurably designed for a long service life$9.44
- Dorman®12 V Circuit Tester with LCD Display (88058)Universal 12 V Circuit Tester with LCD Display by Dorman®. Dorman offers a comprehensive line of Electrical Multi-Testers for almost any automotive repair. All Electrical Multi-Testers are constructed of high-quality materials for...Testers light up and/or buzz to indicate testing resultDurably designed for a long service life$15.82
- Dorman®15" Multi Purpose Ground Strap (60213)Universal 15" Multi Purpose Ground Strap by Dorman®. Dorman offers a line of Body Electrical Ground Straps for a wide range of applications. All Body Electrical Ground Straps are constructed of high-quality materials for long-lasting...Strap measures 15" in length to cover most usesMade of copper for high conductivity$4.24
- Dorman®3/8" Copper Ring Lugs with Insulation (86184)Universal 3/8" Copper Ring Lugs with Insulation by Dorman®. Dorman offers a comprehensive line of Copper Lugs for almost any automotive repair. All Copper Lugs are constructed of high-quality materials for long-lasting durability.Conveniently packaged in a variety of piece counts to assist with both small and large projectsAlso suitable for a broad range of industrial and commercial uses$2.66
- Dorman®399-piece Automotive Electrical Repair Kit with Case (86689C)Universal 399-piece Automotive Electrical Repair Kit with Case by Dorman®. Electrical Diagnostic and Repair Kit contains an assortment of the most popular items needed to complete electrical repairs. Conveniently packaged in a reusable...A cost-efficient and time-saving alternative to purchasing each component separatelyConveniently packaged in a durable plastic tray for protected storage$48.17
- Dorman®9" Computer Safe Test Probe (86602)Universal 9" Computer Safe Test Probe by Dorman®. For accurate testing of voltage and amperage sensitive circuits, use Diagnostic Test Probes. Replacement is constructed of high-quality materials for durability and a longer service life.Quality plastic, copper, and aluminum constructionSafe to use on computer controlled circuits$23.05
- Dorman®Un-insulated Alligator Clip Leads (85654)Universal Un-insulated Alligator Clip Leads by Dorman®. Dorman offers a comprehensive line of Alligator Clips for almost any automotive electrical repair. All Alligator Clips are constructed of high-quality materials for long-lasting...Many different lengths availableConveniently packaged in a variety of piece counts to assist with both small and large projects$2.70
- Electronic Specialties®12 V Battery Load Tester (700)Universal 12 V Battery Load Tester by Electronic Specialties®. The #700 has an internal loading capacity of 100 amps. It is a great tool for finding batteries that can’t stand up to the load of today’s automotive accessories. It...Internal 100 Amp loading capacityTests battery voltage, relative starter currentwith heat protection draw, charging voltage and battery condition$35.32
- Electronic Specialties®12 V Digital Electrical System and Battery Tester with Printer (726)Universal 12 V Digital Electrical System and Battery Tester with Printer (726) by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for...Accurate Battery & Electrical System TesterFeatures programmed test for new Start/Stop Batteries$262.03
- Electronic Specialties®12 V Pro Relay Tester (191)Universal 12 V Pro Relay Tester by Electronic Specialties®. Relay Buddy is a quick go / no-go tester for the most common automotive relays. With the included adapters, Relay Buddy now tests 5 different relay types and also tests...Designed for your maintenance needsMade from high-grade material for a long lifespan$131.43
- Electronic Specialties®12 V Relay Tester (190)Universal 12 V Relay Tester by Electronic Specialties®. Relay Buddy is a quick go / no-go tester for the most common automotive relays. It provides you with an indication of the general health and functioning of the relay switch...Quick off-the-car relay testerChecks relay coil and switch contacts$60.83
- Electronic Specialties®2 Pieces Replacement Thermal Printer Papers (726-1)Universal 2 Pieces Replacement Thermal Printer Papers by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...Designed to help to get your job done rightManufactured utilizing the highest quality materials$6.52
- Electronic Specialties®70-Piece Diagnostic Test and Terminal Set (846)Universal 70-Piece Diagnostic Test and Terminal Set by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...Clear storage case included & helps you stay organizedWorks with Multimeters and digital scopes$152.16
- Electronic Specialties®Essentials Of Electrical Power Generation (183)Universal Essentials Of Electrical Power Generation by Electronic Specialties®. This is Dan Sullivan's 2nd book, which covers everything you need to know regarding Electric Power Generation from RV generators to large Gensets. Dan lends...Designed for your maintenance needsMade from high-grade material for a long lifespan$44.21
- Electronic Specialties®Fuse Buddy™ 12 V/24 V Relay Tester (316)Universal Fuse Buddy™ 12 V/24 V Relay Tester by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...Is it a circuit problem or a relay problem?Relay Fuse Buddy can help diagnose the case$85.70
- Electronic Specialties®Fuse Buddy™ 30 A Mini Tester (305M)Universal Fuse Buddy™ 30 A Mini Tester by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Great for motor blowersOriginal fuse is replaced in-line during testing, thereby maintaining circuit protection$29.79
- Electronic Specialties®Fuse Buddy™ ATC Current Loop (308B)Universal Fuse Buddy™ ATC Current Loop (308B) by Electronic Specialties®. Just clamp your current probe over the loop to access the amperage draw through a fused circuit. Easy testing access, plugs right into fuse socket, no more hand...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.63
- Electronic Specialties®Fuse Buddy™ Current Loop Kit (309A)Universal Fuse Buddy™ Current Loop Kit by Electronic Specialties®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Plug in Fuse Buddy and read circuit amp drawsEasy test connection into fused circuits$32.99
- Electronic Specialties®Fuse Buddy™ Mini Current Loop (307M)Universal Fuse Buddy™ Mini Current Loop (307M) by Electronic Specialties®. Just clamp your current probe over the loop to access the amperage draw through a fused circuit. Easy testing access, plugs right into fuse socket, no more...Designed to help to get your job done rightManufactured utilizing the highest quality materials$15.63
- Electronic Specialties®LOADpro™ 12 V/48 V Dynamic Test Leads (185)Universal LOADpro™ 12 V/48 V Dynamic Test Leads by Electronic Specialties®. This new version of LOADpro is capable of loading circuits as high as 48 volts. 185 can be deployed on Electrical System ranging from 12 volts up to 48 volts....Use on 12V to 48V circuitsPerforms voltage drop test with the push of a button$67.40
- Electronic Specialties®Profesional Fuse Buddy Test Kit (310)Profesional Fuse Buddy Test Kit by Electronic Specialties®. 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...Intended to help you do the maintenance job with ease and comfortCrafted using leading-edge technology for maximum functionality$80.89
- Electronic Specialties®Relay Buddy™ 12 V/24 V Pro Relay Tester (192)Universal Relay Buddy™ 12 V/24 V Pro Relay Tester by Electronic Specialties®. Relay Buddy 12/24 is a quick go / no-go tester for the most common automotive relays. This new version Relay Buddy tests both 12 and 24 volt relays. If the...Quick off-the-car relay testerChecks relay coil & switch contacts$65.21
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