Semi Truck Diagnostic & Testing Tools
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Code Readers & Scanners
Anti-Freeze & Coolant Testers
Electrical Testers
Timing Lights
Fuel System Testers
Ignition Testers
Brake Testers & Measuring Tools
Coating Thickness Gauges
Oil Pressure Test Tools
Engine Compression Testers
Diagnostic Leak Detection
Headlight Alignment Systems
Suspension Testers
Vehicle Scales
Refrigerant Identifiers
Window Tint Meters
Exhaust System Testers
Auto Inspection Cameras & Scopes
Featured Brands
- Power Probe®3CS™ Blue Circuit Tester (PP3CSBLU)Universal 3CS™ Blue Circuit Tester (PP3CSBLU) by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Voltage & Polarity testingContinuity testing$139.78
- Power Probe®3CS™ Camo Circuit Tester (PP3CSCAMO)Universal 3CS™ Camo Circuit Tester (PP3CSCAMO) by Power Probe®. Easy to read backlit Voltmeter allows you to read voltage at the tip eliminating wasted time running to your toolbox for a voltmeter! 42V Ready right out of the box...Digital voltmeterContinuity tester$139.78
- Power Probe®3CS™ Carbon Circuit Tester (PP3CSCARB)Universal 3CS™ Carbon Circuit Tester (PP3CSCARB) by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Digital voltmeterContinuity tester$139.78
- Power Probe®3EZ™ Camo Circuit Tester (PP3EZCAMOCS)Universal 3EZ™ Camo Circuit Tester (PP3EZCAMOCS) by Power Probe®. The Power Probe 3EZ is a Digital Voltmeter that provides diagnostic power with the flip of a switch. This tool simplifies the testing of fuse boxes, verifies correct...Voltage & Polarity testingContinuity testing$172.08
- Power Probe®3EZ™ Carbon Circuit Tester (PP3EZCARBCS)Universal 3EZ™ Carbon Circuit Tester (PP3EZCARBCS) by Power Probe®. The Power Probe 3EZ is a Digital Voltmeter that provides diagnostic power with the flip of a switch. This tool simplifies the testing of fuse boxes, verifies correct...Voltage & Polarity testingContinuity testing$172.08
- Power Probe®3EZ™ Green Circuit Tester (PP3EZGRNCS)Universal 3EZ™ Green Circuit Tester (PP3EZGRNCS) by Power Probe®. The Power Probe 3EZ is a Digital Voltmeter that provides diagnostic power with the flip of a switch. This tool simplifies the testing of fuse boxes, verifies correct...Voltage & Polarity testingContinuity testing$172.08
- Power Probe®5 V Reference Adapter (PPT5VA)Universal 5 V Reference Adapter by Power Probe®. This Adapter will connect to any Power Probe circuit tester and limit the voltage to 5 volts perfect for testing sensor and computer circuits. Your electrical system maintenance will be...Adapter connects between your Power Probe and the Probe-tipDesigned for your maintenance needs$28.86
- Power Probe®Alligator Clip (PPTK0023)Universal Alligator Clip by Power Probe®. 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 features and...Designed for your maintenance needsMade from high-grade material for a long lifespan$7.18
- Power Probe®Cigarette Adapter (PPTK0026)Universal Cigarette Adapter by Power Probe®. 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 features...Designed for your maintenance needsMade from high-grade material for a long lifespan$14.41
- Power Probe®Circuit Tracer and Short Finder Kit (ECT3000B)Universal Circuit Tracer and Short Finder Kit (ECT3000B) by Power Probe®. The ECT3000 Electrical Short and Open Finder makes locating shorts and opens quickly and more accurately than ever before. When the ECT3000 Transmitter is...Trace Out a Short Circuit to Chassis GroundTracing Out a Battery Drain or Current Draw$137.23
- Power Probe®Circuit Tracer and Short Finder Kit with Adapters (PPECT3000)Universal Circuit Tracer and Short Finder Kit with Adapters (PPECT3000) by Power Probe®. The ECT3000 Electrical Short and Open Finder makes locating shorts and opens quickly and more accurately than ever before. When the ECT3000...Trace Out a Short Circuit to Chassis GroundTracing Out a Battery Drain or Current Draw$211.18
- Power Probe®Clip Set for 3™/3S™/3EZ™ Circuit Tester (PPTK0025)Universal Clip Set for 3™/3S™/3EZ™ Circuit Tester by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system...Designed for your maintenance needsMade from high-grade material for a long lifespan$12.71
- Power Probe®Gold Series 0 to 70 V Digital Circuit Tester with Test Lead Set (PP3LS01)Gold Series 0 to 70 V Digital Circuit Tester with Test Lead Set by Power Probe®. Power Probe 3 combined with the Gold Series Lead Set makes this kit the ultimate in circuit testing diagnosis. The best sidekick to the PP3 is a kit with...Voltage & Polarity testingContinuity testing$254.11
- Power Probe®Gold Series Test Leads Set (PPLS01)Gold Series Test Leads Set by Power Probe®. The Gold Series Lead Set gives you the ability to extend the reach of your Power Probe with various extended leads an adapter. Get your job done right every time with top-of-the-line...Ideal solution to help you do your job with great precisionDesigned using sophisticated technology for maximum functionality$91.33
- Power Probe®IV™ Circuit and Fuel Injector Tester (PP405AS)Universal IV™ Circuit and Fuel Injector Tester by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Designed for your maintenance needsMade from high-grade material for a long lifespan$292.78
- Power Probe®IV™ Master Combo Circuit Tester Kit (PPKIT04)Universal IV™ Master Combo Circuit Tester Kit by Power Probe®. The Power Probe 4 simplifies testing of motors, lights, Relays, Sensors as well as supplying Power and Ground for component testing on or off the car. The PPECT3000 will...Supply Power or Ground for Functional Component TestingSelf-Resetting Thermal 8A Circuit Breaker$474.26
- Power Probe®Mini-Probe™ USB Voltage Tester (TSTUSB)Universal Mini-Probe™ USB Voltage Tester by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Designed for your maintenance needsMade from high-grade material for a long lifespan$22.48
- Power Probe®Motorcycle Battery Adapter (PPTK0044)Universal Motorcycle Battery Adapter by Power Probe®. 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...Used for quick and simple connection to a standard battery tender connectorAllows access of Power Probe 3 Series into tight spaces around the motorcycle$14.41
- Power Probe®OBD-II Breakout Box Pin Adapters (PPTK0048)Universal OBD-II Breakout Box Pin Adapters by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Designed for your maintenance needsMade from high-grade material for a long lifespan$19.48
- Power Probe®One Battery Clip Set for the Power Probe 4 (PPTK0031)Universal One Battery Clip Set for the Power Probe 4 by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Field replaceableConnects PP4 to battery$24.61
- Power Probe®PP 3™ Circuit Tester (PP319FTC)Universal PP 3™ Circuit Tester (PP319FTC) by Power Probe®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Designed for your maintenance needsMade from high-grade material for a long lifespan$179.31
- Power Probe®Professional Electrical System Tester Kit (PPROKIT01)Universal Professional Electrical System Tester Kit by Power Probe®. The Power Probe 3 (PP3), signature Power Probe product, is great for simple, quick, accurate vehicle circuit testing, and for powering up lights and components. The...The Power Probe Professional Testing Electrical Kit provides the ability circuit testing Power Probe III combined with the diagnostic capabilities of the PPDMMSupplies Power and Ground for Functional Component Testing$314.46
- Power Probe®Rocker Switch (PPTK0021)Universal Rocker Switch by Power Probe®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$11.01
- Power Probe®Switch Latch for Power Probe 3 (PPTK0028)Universal Switch Latch for Power Probe 3 (PPTK0028) by Power Probe®. 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$6.33
- Power Probe®TEK Maestro™ 9 V to 30 V Circuit Tester (PPTM01AS)Universal TEK Maestro™ 9 V to 30 V Circuit Tester by Power Probe®. Introducing The Maestro by Power Probe ek: a multi-use Circuit-Tester with built-in iagnostic power. This tool simplifies the esting of fuse boxes, verifies correct...Designed for your maintenance needsMade from high-grade material for a long lifespan$344.21
- Prime Products®12 V LCD Battery Tester (12-2021)Universal 12 V LCD Battery Tester by Prime Products®. 12V LCD battery monitor has easy to read display that shows digital voltage as well as bar graph for battery charge level. Color LEDs indicate battery charge status. Head pivots for...Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements$17.36
- Pro MotorCar®Mini Electronic Thickness Gauge (CM-8825FN)Universal Mini Electronic Thickness Gauge (CM-8825FN) by Pro MotorCar®. Designed for body shops, dealerships, painters, appraisers, inspectors, detailers and professional car buyers. This tool will help you measure the thickness of your...Pocket size with one-hand operationConclusively identify all previous refinish work$563.09
- Pro MotorCar®ProGauge II™ Pocket Thickness Gauge (2438)Universal ProGauge II™ Pocket Thickness Gauge by Pro MotorCar®. ProGauge II is a magnetic coating thickness gauge that measures the thickness of non-ferrous coatings on steel. This tool will help you measure the thickness of your...The most popular paint gauge in historyKnow when panels are repainted; know when paint is too thick or thin$59.90
- ProMariner®12 V Handheld Charger, Alternator and Battery Tester (87710)Universal 12 V Handheld Charger, Alternator and Battery Tester by ProMariner®. At-a-glance testing of batteries, on-board charger, alternator/regulator output 6 Easy-to-read LED indicators Compact, lightweight design. This product has...At-a-glance Testing of batteries, on-bpard charger, alternator regulator output6 Easy-to-read LED indicators$12.20
- Professional Products®0 to 300 psi Analog Compression Tester (11108)Universal 0 to 300 psi Analog Compression Tester by Professional Products®. 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...High Performance GaugeDual Fit Threaded End$37.01
With today’s high-tech computer and electronics packed vehicles, electronic testers and diagnostic equipment have become the main weapons in the vehicle service arsenal, so we’ve stocked our digital shelves with scan tools, multimeters, analyzers and much more. When you’re armed with these electronic tools, you’ll be able to defeat any CHECK ENGINE light, blown fuse, balky window, recalcitrant alternator, or any other electrical malfunction with ease.
Electronic testers range from simple jumper wires, also called test leads, to sophisticated engine scan tools. Test leads allow you to bypass a circuit and directly test a component by applying 12 volts from the battery. Test lights, also called circuit testers, are essential tools for determining whether voltage is present at particular points in circuits. There are circuit powered and self-powered test lights, also known as continuity testers.
Test lights can tell you whether voltage is present, but they can’t tell you how much. For specific values you need a voltmeter, which is routinely packaged with an ohmmeter and ammeter in an electronic tester called a multimeter. There are analog meters that have a needle and a scale, but Digital Multi-Meters (DMM), also known as Digital Volt Ohm Meters (DVOM) are necessary for computer controlled circuits. Voltmeters can display the amount of voltage, such as when testing a battery or charging system, and test voltage drop. Ohmmeters measure resistance in a circuit and ammeters measure current flow.
A scan tool provides access to your vehicle’s computer control system via a cable connected to the Data Link Connector (DLC). With a scan tool you can read the Diagnostic Trouble Codes (DTCs) that cause CHECK ENGINE, Air Bag, and ABS dash lights to illuminate. Tool capability varies, and some can also read, record, and playback sensor data, display I/M monitor status, read and display freeze frame data, download to a PC, and be updated via USB port. In addition to erasing DTCs, some scan tools can also be used to reset oil lights and other warning lights.
Along with the above mentioned essentials, we also have many more diagnostic time savers including noid lights to check fuel injectors, current probes to measure current without disturbing the circuit, battery testers, infrared thermometers for instantaneous temperature indication, inspection cameras for peaks into the smallest places, and much more. And if you have an older, pre-computer controlled vehicle we have the tools you need to make adjustments and keep your vehicle running right, like timing lights to check initial timing and timing advance, and dwell/tachs to set breaker points and idle speed.