Mack MH Electrical System Testers
- Electronic Specialties®Maxi Relay Adapters (190-8)Universal Maxi Relay Adapters by Electronic Specialties®. Had consistent and regular requests from dealers and end users to add a sixth adapter to the Relay Buddy test system. The relay in question is a popular 50 Amp relay used on...Adapter allows testing of heavy duty 4-pin Maxi relays - commonly used in Heavy DutyRelay adapter plugs into Relay Buddy first$17.14
- 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$66.12
- 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$145.02
- 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$52.82
- FJC®12 V 500 A Carbon Pile Battery Load Tester (45115)Universal 12 V 500 A Carbon Pile Battery Load Tester (45115) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers,...Test alternators, regulators & startersSeparate Volt and A meters$142.24
- FJC®6 V/12 V 100 A Battery Tester (45110)Universal 6 V/12 V 100 A Battery Tester (45110) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers, chargers,...Test car / truck batteries of current draw, voltage, and alternator performanceQuick 10 second load test$43.53
- FJC®6 V/12 V 125 A Battery Tester (45107)Universal 6 V/12 V 125 A Battery Tester (45107) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery testers, chargers,...Test car / truck batteries of current draw, voltage, and alternator performanceQuick 10 second load test$57.32
- FJC®6 V/12 V/24 V 1000 A Carbon Pile Battery Load Tester (45118)Universal 6 V/12 V/24 V 1000 A Carbon Pile Battery Load Tester (45118) by FJC®. The Power Division of FJC is an industry-leading manufacturer and distributor of power electronic products and systems for mobile markets including battery...Tests alternators, regulators & startersLarge, easy-to-read gauges$438.43
- GearWrench®6 V/12 V High-Low Circuit Tester (129D)Universal 6 V/12 V High-Low Circuit Tester by GearWrench®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Tests voltage in 6 and 12V systems by grounding the clip and touching the probe to the point being testedTester bulb will light if power is present$12.68
- GearWrench®Remote Control Starter Switch (124DD)Universal Remote Control Starter Switch by GearWrench®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Made of heavy-duty construction and has long leadUse for GE generator, starter, electrical, fuel pump and compression tests and for setting ignition points and adjusting tappets$17.02
- IPA®Electric Brake Force Meter with Dynamic Load Simulation And Circuit Testing (9107A)Universal Electric Brake Force Meter with Dynamic Load Simulation And Circuit Testing by IPA®. Tests Truck-Side Brake Controller Output and All Towing-Lighting Functions Without a Trailer! The #9107A Electric Brake Force Meter with...Brake Force Meter displays real-time, brake controller output gain and timingQuickly troubleshoots electrical circuits and ground condition$164.96
- Lisle®Deluxe Relay Tester Set (60660)Universal Deluxe Relay Tester Set (60660) by Lisle®. Includes 8 Jumpers to Fit Most Popular Relays. Also Includes Test Lead Kit and Relay Puller Pliers. Jumpers have tabs for clamping and flat pads to place test leads on. No need to...Designed for your maintenance needsMade from high-grade material for a long lifespan$160.74
- Lisle®Master Relay and Fused Circuit Tester Kit (69300)Universal Master Relay and Fused Circuit Tester Kit by Lisle®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Kit Makes Testing Relays or Live Circuits Quick and EasyJumpers to fit most popular relays$197.79
- Lisle®Power and Ground Outlet (32150)Universal Power and Ground Outlet by Lisle®. Provides a Convenient Electrical Ground and Power Source from the Vehicle. Plug the tool into the cigarette lighter or power accessory receptacle. You now have a ground and power source on...Designed for your maintenance needsMade from high-grade material for a long lifespan$15.92
- Lisle®Replacement Bulb for 20610 Inline Spark Tester (20680)Universal Replacement Bulb for 20610 Inline Spark Tester by Lisle®. 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...Designed to help to get your job done rightManufactured utilizing the highest quality materials$3.38
- Milton®6 V/12 V Battery Tester (1260)Universal 6 V/12 V Battery Tester (1260) by Milton®. This battery, starter and charging system tester can test up to 120 amps at 10 volts. This tester has a black metal finish and includes storage on the side for cables. With its heavy...Tests 6 and 12 volt batteriesAnalog display is easy to read$52.11
- Milton®6 V/24 V Circuit Tester (S1235)Universal 6 V/24 V Circuit Tester (S1235) by Milton®. 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...Designed for your maintenance needsMade from high-grade material for a long lifespan$15.02
- OTC®12 V Digital Charging System and Battery Tester (3183)Universal 12 V Digital Charging System and Battery Tester by OTC®. Speed. Accuracy. Reliability. These are the cornerstones behind the technology in digital battery testers. 3183 tests 12 volt batteries (125-1400 CCAs) and analyzes by...Utilizes cost effective conductance test technology for accurate testing at a value price pointQuick 1-second initial results$181.24
- OTC®Anti-zap Auto Surge Protector (3386)Universal Anti-zap Auto Surge Protector by OTC®. Prevents damage to sensitive electronic systems. Protects key vehicle components from high-voltage spikes. Your electrical system maintenance will be easier with this high-quality...Designed for your maintenance needsMade from high-grade material for a long lifespan$161.98
- OTC®Bosch™ VET 100 Circuit Analysis Tool (3920)Universal Bosch™ VET 100 Circuit Analysis Tool by OTC®. The Bosch VET 100 Circuit Analysis Tool is perfect for data stream analysis using your scan tool. With quick and easy setup, you can identify faulty sensors, wiring harnesses,...Save time and quickly identify failed circuit component, wiring harness or ECMUse with any scan tool during data stream analysis$237.04
- OTC®Parasitic Draw Test Switch (6945)Universal Parasitic Draw Test Switch by OTC®. Test switch is used with an amp meter to isolate parasitic amperage draws on all GM vehicles or any vehicle with a side- or top-post battery. This tool attaches between the negative battery...Designed to help to get your job done rightManufactured utilizing the highest quality materials$115.78
- OTC®Parasitic Draw Tester (7645)Universal Parasitic Draw Tester by OTC®. Finding electrical problems that drain the battery is getting harder all the time. But using No. 7645 with your digital amp meter takes the guesswork out of a complicated job. Attach the test...Designed for your maintenance needsMade from high-grade material for a long lifespan$92.54
- PAC®0 to 8 V Tone Generator and Polarity Tester (TLPTG2)Universal 0 to 8 V Tone Generator and Polarity Tester by PAC®. Perfect for safely troubleshooting and testing audio systems. Offers an output range of 0 to 8 V at a variable 10 kHz to 13Hz tone for setting system levels, checking...Test speaker polarityCheck cross over points$55.40
- Performance Tool®12 V Battery Alternator Tester (W2989)Universal 12 V Battery Alternator Tester by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Easy to use battery / alternator testerPlug in to the 12V cigarette lighter in your car, the LED indicators will show you the status of your battery and alternator$11.25
- Performance Tool®12 V Digital Battery Analyzer (W2998)Universal 12 V Digital Battery Analyzer by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Portable, fast, and very simple to use battery starting and charging system analyzerDigital display indicates the condition of your battery and charging system$35.17
- Performance Tool®12 V LED Battery Tester (W2980)Universal 12 V LED Battery Tester by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Easy to read L.E.D. lightsDetermines battery state of charge and level of alternator output$9.11
- Performance Tool®24 Pieces Alligator Clips (W5209)Universal 24 Pieces Alligator Clips by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance needs,...Make your own low-voltage jumper leadsRepair broken leads on test equipment and chargers$9.23
- Performance Tool®6 V/12 V 100 A Battery Load Tester (W2988)Universal 6 V/12 V 100 A Battery Load Tester by Performance Tool®. Your electrical system maintenance will be easier with this high-quality product. It is specially developed and manufactured for your electrical system maintenance...Accurately test the condition of your battery and charging systemsPerforms both a voltage test and 15-second battery-load test. 100-amp capacity$29.13
- Performance Tool®6 V/12 V/24 V Computer Safe Circuit Tester (W2991)Universal 6 V/12 V/24 V Computer Safe Circuit Tester by Performance Tool®. Gives the professional the ability to test fuel injectors, solenoids, tach reference signals Test the output on MAF, Cam, Crank, VSR sensors and much more. This...Computer safe, drawing less than 7 milliampsQuickly tests high and low voltages on all vehicle circuits, including computerized engine and body controls$14.37
- Performance Tool®6 V/12 V/24 V Dial Battery Tester (W1657C)Universal 6 V/12 V/24 V Dial Battery Tester by Performance Tool®. 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...Quickly tests 6V, 12V and 24V batteriesDial indicator style$5.44