The best quality electrical circuit tester available for checking 6 and 12 volt systems
   5' of tough, flexible, heavily insulated rubber wire is retained in spring supported strain relief designed to withstand the most rugged use
   Bulb is easily replaced
   Combines all the features desired by professional technicians and do-it-yourselfers

   Our most computer safe circuit tester!
   High impedance - the current draw is less than 7 milliamps
   Quickly and safely tests high and low voltages (power and ground) on all vehicle circuits, including computerized engine and body controls
   Dual color LED indicates red for power (high) and green for ground (low) on 6, 12 and 24 volt systems

Features an extra long wire that stretches up to 12 feet for use, then automatically retracts
   Great for use on cars, trucks, boats, trails, motorcycles, airplanes and snowmobiles
   A heavy duty ground clip with insulator is on one end of the retractable wire and a spring supported strain relief is on the other
   For 6 and 12 volt vehicles

   Quickly tests voltage up to 28 volts
   Heavy duty probe, cord, and clamp
   Probe is insulated with high-visibility shrink tubing to prevent the possibility of shorting the side of the probe to other components

Plug in the Harness Checker to your trailer plug and easily trace each lighting function to the terminal in question, Each LED light will correspond to the circuit being energized, Also provides an easy to connect ground terminal for trailer lighting set up,

Sheffield Research STC8007 Circuit Polarity Tester

   Designed for testing electrical circuits and locating shorts, grounds and open circuits
   12-foot, heavy-duty, red coil cord lead
   Checks 6- and 12-volt systems
   Ergonomic slim designed clear handle
   Bright red, slim style replaceable bulb
   Positive contact molded strain relief
   Heavy-duty, stainless steel probe with insulated shaft
   Heavy-duty clip with positive soldered connection

Sheffield Research STC8002 Cordless Circuit Tester

Multiple Ground Source Connection Options

   Heavy-duty circuit tester with multiple options for connecting to a ground source
   Long, 12' cord has a quick coupler to securely connect clamp or power outlet plug. Large, stron clamp conects securely
   Power outlet plug can always be used to provide ground in the cabin
   For testing circuits up to 12 volts.

The most economic way to check electronic fuel injection (EFI) signals, Quickly and easily checks for systems of GM TBI, Bosch PFI Ford TBI, GM PFI, Geo TBI and GM SCPI, To test, just disconnect the fuel injectors, plug the Noid Lite into injector wiring harness then crank the engine, Normal voltage is indicated by flashing light which is visible from passenger compartment, Blow molded case for easy storage and transport,

Circuit current from 0 - 30 amps/48 volts, Resolution .1A (100 mA), Plug in the FUSE BUDDY and read the circuit amperage draw, Great tool for electrical troubleshooting at the fuse box,

Plug in the FUSE BUDDY and read the circuit amperage draw, Great tool for electrical troubleshooting at the fuse box,

For all SUVs and light trucks

Quickly Test, Clean and Repair Truck and Trailer Connectors, Extends the Life of Harnesses, Great Preventative Maintenance Tool, Promotes Safety and Limits Road Hazards,

Quickly Test, Clean and Repair Truck and Trailer Connectors, Extends the Life of Harnesses, Great Preventative Maintenance Tool, Promotes Safety and Limits Road Hazards,

For flat pin or spade style terminals, Works on both male and female connectors, Remove corrosion and extend harness life, Reduce diagnostic guesswork by connectors eliminating bad connections, Most common automotive, commercial and Ag,

New trailer circuit tester will adapt to 100% of the tractor trailers, Improved the LED display, Includes extra pin and jumper connectors, Made in the USA,

The relay bypass switch plugs in place of the fuel pump relay and provides direct control over the fuel pump circuit, When testing fuel injection systems the relay bypass allows actuation of the fuel pump when the engine is not running for accurate trouble shooting, Relay bypass allows a technician to control fuel pump independent of all on board systems, Kit Includes: Small, medium and large spade relays, Operating range: 20 Amp continuous, 30 Amp surge (12V),

The Relay Bypass Kit II contains three additional relays for common fuel pump relay applications. Ï Actuate fuel pump when the engine is not running, Control fuel pump independent of all on-board systems, Most common applications include: Japanese, Domestic and German vehicles, Operating range: 20 Amp continuous, 30 Amp surge (12V),

, Plug TapIdeal for routine maintenance, repair work and for rethreading where high accuracy and tolerance thread is not critical, Straight flutes are ground to provide rapid chip removal for efficient threading, Designed for hand threading work in a variety of materials, Taps produce a class 2B thread,

, The 12 Piece Set of Round Files, Ranging from .030" to .120", are Specially Designed to Clean Cannon, Deutsch, Bullet & Other Round Pin Female Terminals.Durable diamond abrasive coating, Each file is marked or color coded for size, Size ranges include: .030-.040", (2) .040-.050", (2) .050-.060", .060-.070", .070-.080", .080-.090", .090-.100", .100-.110", .110-.120", .120-.130",

4, 5 Flat connectors, 6 round and 7-way spade pin terminal, For male and female connections, Maintain continuity and prevent circuit failure, Makes trailer sockets last longer, Quickly and precisely, Use deoxidation spray after cleaning for improved long lasting connections,

With Accessory Kit

   High current lead set rated for 30 amps
   Super flexible 10 gauge leads (1', 3', 6' stackable)
   2 auto centering wire piercing probes
   Standard high current 4 mm shrouded banana plugs and jacks
   Male/Male and Female/Female adapters
   Stacking plugs for greater flexibility

Quick off-the-car relay tester, Checks relay coil & switch contacts, Fails bad relays, Automatic test with good/bad indication,

   Make testing relays or live circuits quick and easy
   Set includes four jumpers to fit many popular relays on Honda, Nissan, Toyota, newer Ford and GM mini micro relays as well as International truck

New and improved…now works with all European Imports with higher wavelengths, Remote Entry Pro quickly and easily determines if the key fob is operating properly. It will also assist the Technician when the vehicle receiving unit is questionable, Works on North American, Asian and European vehicles.,

Quick and easy way to check circuit amperage draws, Installing an auto-resetting circuit breaker allows you to check for intermittent shorts and monitor the current draw at the same time, Deluxe LCD display features full ANALOG BAR GRAPH, Unit features DATA HOLD and AUTO POWER-OFF, Resolution: .1A (100 mA) - Accuracy: +2%,

, For 4, 5, 6, 7 Flat/Spade and 7 Round Trailer ConnectorsClean and re-size trailer pins, Remove corrosion from connectors, Use as a pin wear gauge, Includes: 4 and 5 Round Pin, 6 Round Pin, 7 Flat(Spade) Pin, 7 Round Pin, Swab-Eez 8 and 5 mm Head, DeoxIt Contact Cleaner,

Quick and easy way to check circuit amperage draws, Installing an auto-resetting circuit breaker allows you to check for intermittent shorts and monitor the current draw at the same time, Deluxe LCD display features full ANALOG BAR GRAPH, Unit features DATA HOLD and AUTO POWER-OFF, Resolution: .1A (100 mA) - Accuracy: +2%, Works on maxi fuse circuits up to 80 amps,

Power Probe PPIPP19FT Power Probe 1 Circ. Test

Includes: 7 Way Flat Pin Trailer Circuit Tester, 7 Round To Flat Adapter, 3 Way Trailer Adapter, 6 Round Pin Trailer Circuit Tester, 4/5 pin Harness Checker

With Volt Meter - 42V Ready

   HD keyed connectors
   20' Jumper lead set
   Test light, Short Circuit indicator, Continuity tester

, Audible Trouble ShooterSettable amp levels of 10, 15, 20, 25 and 30 amps, Automatically opens the circuit in event of overload, In Auto mode, circuit gets re-powered in 10 seconds, In Manual mode, user re-sets power to circuit, Helps you finds these problems: Locating shorts to ground, Intermittent shorts, Intermittents caused by loose connections,

   Supplies positive voltage, negative voltage or ground at probe tip
   LED visual indicator
   Check polarity; test continuity; activate electrical components
   Quick self test with power switch
   Short circuit protected plus two tone audio signal and built-in head lamp

   Kit includes: (2) "AAA" batteries, Transmitter & Receiver, Battery Hook-up Clip Set, 3 Bulb Adapters, Universal Wire w/Jack, Blade Probe, Back Probe, Piercing Probe, Alligator Clip Set and Instruction Manual on CD
   The "SMART" Receiver's Sensitivity Adjustment keeps you on the right circuit and ignores the unnecessary weaker signals

Works on 12 or 24 volt systems, Used to test relay circuits in late model vehicles, Identify the problem in a circuit in seconds without the use of a multi-meter, Can jump the relay for compression testing a/c recharge etc, Includes six of the most popular relay adapters plus a universal to configure your own, Cuts diagnostic time on relay related problems by up to 75%,

Combines the 69200/56810/60610 plus the relay puller pliers that easily removes electrical relays without damage to the relay or electrical box

Kit includes: Power Probe 2, 20' extension, cigarette lighter adapter, 9" extension probe and case

Sheffield Research STC FF310 Fault Finder..42V Elec

   Combination of the PPLS01 and the Power Probe
   Just connect the Power Probe to your vehicle's battery and you have a multitude of testers at your fingertips
   Connections: 2 piercing probes, 1-3-6' leads, alligator clip, 4 mm male adapter, 4 mm female adapter, probe tip, banana jack adapter
   Heavy-duty 10 gauge multi-strand wire with 4 mm gold plated connectors