Diagnostic & Testing

A 2-in-1 Tester that Tests Circuits up to 28 Volts and Works as a Jumper Wire for Power or Ground Heavy-duty circuit tester for checking low voltage up to 28 volts By depressing the red button the tester becomes a jumper for powering electrical...

Checks Both Low Voltage and Spark Plug Wires. The low-side checks AC and DC current up to 28 volts with power on. The high-side checks spark plug wires without piercing. Complete with insulated clip.

Quickly Tests Low Voltage up to 28 Volts. A heavy duty circuit tester for lifetime use. The probe, handle, cord and clamp are reinforced for extra durability. Comes with a strain relief spring on the cord.

Quickly Tests Voltage up to 28 Volts. Heavy duty probe, cord and clamp. The probe is insulated with high-visibility shrink tubing to prevent the possibility of shorting the side of the probe to other components. Comes with a strain relief spring on the...

Quick check both AC and DC current up to 28 volts with power on. Helps locate shorts or breaks in wiring. Complete with insulated grounding clip.

Stop the guess work and repair intermittent electrical connections. Recondition your electrical connections with the 8045 Plow Connector Terminal Cleaner - the first tool for cleaning and rejuvenating old dirty plow connectors. This 3 piece set of...

The 6-piece set is designed to clean ALL North American Truck & Trailer Towing Connectors. The unique patented design allows for precise removal of corrosion from both male and female pins, while maintaining proper pin dimensions. The Trailer...

The 12-piece set of round files, ranging from .030" to .120", are specially designed to clean Cannon, Deutsche, Bullet, and other Round Pin Female Terminals. The set includes 12 individual pieces ranging in sizes from .030" -.120". Each tool features a...

Included adapters work interchangeably with banana plugs on the 2 x 15-ft. retractable test leads Used for testing electrical circuits in cars, trailers, boats, etc. 15-ft. wire allows you to connect the leads under the hood and test from the driver’s...

Magnetic back allows technician to mount test leads Used for testing electrical circuits Retractable test leads pull out and stay at desired length Rewind test leads into protective case when not in use Contain insulated alligator clips 18 gauge copper...

Used for testing electrical circuits Retractable test leads pull out and stay at desired length Rewind test leads into protective case when not in use Contains insulated alligator clips 18 gauge copper wire

Used for testing electrical circuits. Retractable test leads pull out and stay at desired length. Rewind test leads into its own protective case when not in use. Insulated alligator clips. 18 gauge copper wire, 30' total lenth