Diagnostic & Testing

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.

Features: This unit does not require ground wire or clip and is safe with ECMs, Sensors, Transducers, Airbags, etc. Designed to be used on DC powered circuits with voltages between 3 and 28 volts Special designed V-Tip needle allows safe piercing and...

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...

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

Quickly and easily checks electrical circuits and accessories on 6 and 12 volt systems Exta long, high visibility wire stretches for use, then automatically retracts Supersharp probe

Features an extra long wire that stretches up to 12 feet for use, then automatically retracts. Quickly and easily check electrical circuits and accessories on 6 and 12 volt systems. Great for use on cars, trucks, boats, trailers, motorcycles, airplanes...

Heavy Duty Circuit Tester. For 6 & 12 Volt systems. Has heavy duty battery clip at end of 5' of rough, flexible,heavily insulated rubber wire.

Use this device with audio signal to indicate when intermittent short circuit occurs with vehicle at rest or on road test After faulty system is indicated, use to find short location Works on all 12 volt systems Supplied in clear storage box

Use to locate shorts quickly and inexpensively in 12 volt automotive circuits Eliminates need to remove upholstery and floor coverings Operates through metal parts, panels, fiber and plastic materials Simply connect leads to posts of blown fuse...