Universal Diagnostic & Testing Tools
- 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$21.27In Stock - Ships within 24 hrs
- Dorman® - In-Line Spark Checker (86579)Universal In-Line Spark Checker 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$6.47In Stock - Ships within 24 hrs
- 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$2.31In Stock - Ships within 24 hrs
- EZRed® - Windshield Washer Fluid Hydrometer (S104)Universal Windshield Washer Fluid Hydrometer by EZRed®. Test your engine’s cooling system with this easy-to-use and reliable tester to prevent freeze-ups in cold weather and boil-overs during hot conditions and ward off corrosion to...Tests methanol solutionsTemperature compensating$10.78In Stock - Ships within 24 hrs
- 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$124.18In Stock - Ships in 24 to 48 hrs
- 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$53.93In Stock - Ships in 24 to 48 hrs
- 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$4.85In Stock - Ships in 24 to 48 hrs
- 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$143.78In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Digital Electrical System and Battery TesterUniversal Digital Electrical System and Battery 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...Accurate Battery & Electrical System TesterFeatures programmed test for new Start/Stop Batteries$224.00In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Digital Tach/Advance Timing Light (125)Universal Digital Tach/Advance Timing Light by Electronic Specialties®. 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...Professional Timing Light with High Visibility LED display Very bright display indicates Tach (RPM) Degrees AdvanceBrilliant Xenon flash at all speeds$81.39In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - EZ Tach +Plus™ Automotive Tachometer (328)Universal EZ Tach +Plus™ Automotive Tachometer by Electronic Specialties®. 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...Versatile instrument can measure RPM on a wide variety of engines from string trimmers to automotive.Reads engine revolutions from 0 to 20,000 RPM$51.08In Stock - Ships in 24 to 48 hrs
- 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$39.19In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Fuse Buddy™ 0 to 48 V Professional Fuse Tester Kit (310)Universal Fuse Buddy™ 0 to 48 V Professional Fuse Tester 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...Quick and easy way to check circuit amperage drawsCheck blower motor and fuel pump amperage draws$79.22In Stock - Ships within 24 hrs
- 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$81.72In Stock - Ships in 24 to 48 hrs
- 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$27.60In Stock - Ships within 24 hrs
- Electronic Specialties® - Fuse Buddy™ ATC Fuse TesterUniversal Fuse Buddy™ ATC Fuse 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...Designed for your maintenance needsMade from high-grade material for a long lifespan$18.64 - $23.98Availability Varies - Depends on Product Options
- Electronic Specialties® - Fuse Buddy™ Current LoopUniversal Fuse Buddy™ Current Loop 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 made...Designed to help to get your job done rightManufactured utilizing the highest quality materials$13.55In Stock - Ships in 24 to 48 hrs
- 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$32.99In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Inductive Pick-Up Timing Light (150)Universal Inductive Pick-Up Timing Light by Electronic Specialties®. This hard working timing light is accurate up to 8,000 RPM. An extremely bright flash will help you time the engine. The break and shock resistant plastic housing,...Inductive pick-up clamps over the spark plug wire - no adapters requiredPrecision focused flash tube for concentrated brilliant light$46.34In Stock - Ships in 24 to 48 hrs
- 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$60.11In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Reflective Tapes for 330 and #332 Tachometers (654)Universal Reflective Tapes for 330 and #332 Tachometers by Electronic Specialties®. 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...Electronic Specialties 654 Reflective Tape for #330 and #332 - ESI65410 pack of reflective tape for ES brand photo tachometers - #330 and #332$11.90In Stock - Ships in 24 to 48 hrs
- 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$61.13In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Relay Buddy™ 12 V/24 V Pro Relay Tester Kit (193)Universal Relay Buddy™ 12 V/24 V Pro Relay Tester Kit by Electronic Specialties®. Relay Buddy 12/24 Pro Test Kit tests five different relays. Relay Buddy is a quick go / no-go tester for the most common automotive relays and this new...Quick off-the-car relay testerChecks relay coil & switch contacts$135.28In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Small Engine Tachometer (329)Universal Small Engine Tachometer by Electronic Specialties®. 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...Multi function instrument with high vis green backlit LCD displayIP68 dust and water proof$30.33In Stock - Ships in 24 to 48 hrs
- Electronic Specialties® - Troubleshooting Book (184)Universal Troubleshooting Book by Electronic Specialties®. Complete 200-page guide to all aspects of electrical equipment troubleshooting - explained in a way that makes it useful in the store. Written by a mechanic for real, practice...Batteries/TestingRelays, potentiometers, resistors, and solenoids$48.32In Stock - Ships in 24 to 48 hrs
- Equus® - 3 Pieces Push-In Socket Gauge and Speedo Replacement Bulbs (9904)Universal 3 Pieces Push-In Socket Gauge and Speedo Replacement Bulbs by Equus®. Measure thickness of disk brakes. This Equus replacement instrument light kit contains three push-in bulb and socket assemblies for use in Equus plastic...Replacement bulbs for Equus gaugesContains three bulb assemblies$10.26In Stock - Ships within 24 hrs
- Equus® - 5-piece Oil Pressure Tester Adapter Kit (9848)Universal 5-piece Oil Pressure Tester Adapter Kit by Equus®. This product is manufactured to help you maintain and service your oil system. It will make it easier to keep the oil pressure under control for smooth and safe operation of...Comes with sealing crush rings100% brass adapters$12.92In Stock - Ships within 24 hrs
- Equus® - 72" Oil Pressure Nylon Tubing and Adapter Kit (9801)Universal 72" Oil Pressure Nylon Tubing and Adapter Kit by Equus®. The affordable and flexible solution for installation and repair of your Equus mechanical oil pressure gauge. This 6 ft. nylon tubing kit includes all new 1/8 in. brass...Manufactured for your oil system maintenanceBuilt to enhance your productivity$9.97In Stock - Ships within 24 hrs
- Equus® - 8.5 mm x 39" Waterproof Videoscope Inspection System (3380)8.5 mm x 39" Waterproof Videoscope Inspection System by Equus®. The Innova 3380 2.7" Color LCD Inspection Camera is a must have tool for automotive repair work and inspections. Reach, view and inspect areas previously thought...Easily view finer details during an inspection with the high-resolution screen6 bright illumination LEDs Fully light up the inspection area$103.41In Stock - Ships in 24 to 48 hrs
- Equus® - European Oil Pressure Adapter Kit (9843)Universal European Oil Pressure Adapter Kit by Equus®. This four piece US Domestic and European engine oil pressure gauge adapter fitting kit from Equus includes 4 solid brass bushings to adapt from 1/8-27 NPTF female threads to male...Comes with sealing crush rings100% brass adapters$8.98In Stock - Ships within 24 hrs