1991 Mack MH Electrical System Testers
- 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$256.66
- Electronic Specialties®Essentials Of Electrical Power GenerationUniversal 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$45.11
- Electronic Specialties®Fuse Buddy™ 12 V/24 V Relay TesterUniversal 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$87.60
- 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$22.26 - $22.63
- 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$17.97
- Electronic Specialties®Fuse Buddy™ Current Loop KitUniversal 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®LOADpro™ 12 V/48 V Dynamic Test LeadsUniversal 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$68.80
- Electronic Specialties®Maxi Relay AdaptersUniversal 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 TesterUniversal 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 KitUniversal 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 BookUniversal 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®Battery TesterUniversal Battery Tester 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, maintainers, power...Manufactured for your battery maintenance tasksBuilt to meet strict quality standards and safety requirements$42.30 - $363.70
- FJC®Carbon Pile Battery Load TesterUniversal Carbon Pile Battery Load Tester 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,...Separate Volt and A metersDesigned to help to get your job done right$142.24 - $430.56
- GearWrench®6 V/12 V High-Low Circuit TesterUniversal 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
- IPA®Electric Brake Force Meter with Dynamic Load Simulation And Circuit TestingUniversal 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
- IPA®Fuse Saver™ Electrical System Tester KitUniversal Fuse Saver™ Electrical System Tester Kit by IPA®. Chase Down Short Circuits Without Blowing Fuses! The Fuse Saver® Master Kit provides a level of versatility in electronics testing (5-30 amps) never before available. It...Helps install radios, CD players, radar detectors and accessories with easeAllows a technician to move around a vehicle shake testing wires while looking for the short$204.71
- Lisle®Deluxe Relay Tester SetUniversal Deluxe Relay Tester Set 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 pierce...Designed for your maintenance needsMade from high-grade material for a long lifespan$160.74
- Lisle®Master Relay and Fused Circuit Tester KitUniversal 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 OutletUniversal 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 BulbUniversal Replacement Bulb by Lisle®. 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$2.41 - $3.38
- Milton®Battery TesterUniversal Battery Tester by Milton®. 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 quality...Tests 6 and 12 volt batteriesAnalog display is easy to read$52.11 - $69.41
- Milton®Circuit TesterUniversal Circuit Tester 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 features and...Designed for your maintenance needsMade from high-grade material for a long lifespan$9.17 - $15.02
- OTC®6 V/12 V 100 A Battery Load TesterUniversal 6 V/12 V 100 A Battery Load Tester by OTC®. Tests batteries on or off the car in just 10 2nds. Convenient, portable size and easy-to-read scales. This product has been engineered and designed to help you with your battery and...Heavy-duty copper-plated clampsLoad safety switch prevents arcing$52.51
- OTC®Anti-zap Auto Surge ProtectorUniversal 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 ToolUniversal 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 SwitchUniversal 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 TesterUniversal 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
- Performance Tool®12 V Battery Alternator TesterUniversal 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 AnalyzerUniversal 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 TesterUniversal 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