The Power Probe 4 is a multi-use Circuit Tester with built-in diagnostic power.

This tool simplifies the testing of fuse boxes, verifies correct operation of motors, lights, relays, sensors, wires, communications circuits and computer drivers. The large LCD colour display makes viewing live test information and mode selection simplified in even direct sunlight or complete darkness.

• Supplies Power and Ground
• Digital voltmeter with Min/Max voltage capturing
• 20 ft power lead
• Tests for bad grounds / short circuits
• Powered by vehicle battery
• Gold plated brass probe tip
• Directed LED head lamps to illuminate test area
• Ohmeter / Frequency
• Pulse width (+tive & -tive)

Additional diagnostic modes:

• Petrol fuel injection tester
• PCM / ECM driver tester
• Signal tracer (use with ECT3000)

Check out Power Probe's newest tool - The Maestro - with all the features of the PP4 PLUS the built-in diagnostic power to display waveforms.

The Maestro wirelessly pairs with our Power Probe App, allowing for a wireless remote display as well as data streaming and recording.

Files can be emailed, exported or simply saved for future reference.

Easily verify correct operation of:

• Motors
• Lights
• Relays
• Sensors
• Wires

Connects to any Power Probe. Limits output voltage to 5V. Essential for safely testing sensors and computer circuits on vehicles. Now you can supply a 5V reference signal to test computer modules, wiring and the components connected to them.

A 20 foot extension cable for Power Probe 3 circuit testers. Great for working on trucks, trailers and oversized vehicles.

• Original part # PN3049

This clip set allows your Power Probe circuit tester to be powered from any 12V source. Suits all Power Probe 3 models only.

• Original part # PN3046

Connects to any Power Probe. Limits output voltage to 5V. Essential for safely testing sensors and computer circuits on vehicles. Now you can supply a 5V reference signal to test computer modules, wiring and the components connected to them.

This Power Probe kit contains two adaptors - a male / male and a female / female adaptor.  The 4mm connectors are suitable to use with all standard multimeters.

• male / male adaptor
• female / female adaptor

Banana jack alligator clip. This clips suits all Power Probe circuit testers.

• Original part # PN024

This Power Probe adaptor kit contain two adaptors, one with a blade probe for tapping into fuse sockets, and the second, a needle probe for back probing connectors.

• Allows for pinpoint diagnostic testing
• 4mm banana plugs
• Suits all Power Probe circuit testers
• Old part numbers: AA4 | AA6