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)

The PPPWM is an adapter that is plugged into Power Probe circuit testers with 4mm banana plugs (such as THE MAESTRO / PP4 / PP3 / PP3EZ etc).

The adapter can be set for the output 0-100% pulse width drive waveform by pressing the key. Ideal for automotive applications such as automotive fan circuit detection, to find the part of the circuit failure, in order to replace and repair.

Duty cycle adjustable 5% - 100%.

For 12V / 24V use. 10A max continuous output.

The Power Probe Tungsten Penetrator Tip is a durable probe tip designed for enhanced electrical contact. Made from tough tungsten metal, it is three times stronger than standard probe tips, allowing it to penetrate corrosion, oxidation, and rust for reliable testing. Compatible with Power Probe 3, 3EZ, 4, Maestro, and Basic models, it ensures stable readings for automotive diagnostics.

• Compatible with all current Power Probes with removeable tip
• Standard 4mm banana jack

The Power Probe PP3EZKIT is an all-in-one automotive diagnostic kit designed to streamline fault-finding and component testing. It allows you to power up and activate components directly, trace wiring and circuit faults with precision, and expand troubleshooting capability using advanced probe tips and accessories. Ideal for fast, accurate electrical diagnostics across modern vehicle systems.

• Quickly Locate Short and Open Circuits - pinpoint wiring faults with speed and precision, drastically reducing diagnostic time.
• Complete Diagnostic Kit - Includes both the PP3EZ Power Probe for activating and testing circuits and the ECT3000 Circuit Tracer for fault finding in hard to reach wiring, providing a comprehensive all in one testing solution.
• Activate Components with Power or Ground - apply power or ground directly to components, enabling instant functional checks without back probing or jumper wires.
• Includes Tip Adapters - two essential adapters for current measurement (PPAMP) and PWM signal testing (PPPWM), expanding diagnostic capability for modern automotive systems.
   

Replacement self resetting circuit breaker for the Power Probe 4.

• Original part # PC8A

Replacement fuse holder for the Power Probe 4.

This set comprises a universal 4mm wire and alligator clip connector.

• Original part # PNECT057

The Power Probe PPTK0042 is a 5-pack of 20 Amp fast-blow fuses designed specifically for the Power Probe 4 (and Hook). These field-replaceable fuses ensure reliable circuit protection, keeping your diagnostic tool operational. Ideal for automotive technicians, this pack offers dependable performance and easy installation.

• 5 pack

The Power Probe PPTK0021 is a 2-pack of replacement rocker switches designed for Power Probe 3, 3EZ, and 4 models. These OEM-quality switches ensure reliable operation, allowing easy replacement of worn or damaged components. Perfect for automotive technicians, they restore functionality to your diagnostic tool with a secure fit and durable design.

• Old part # PN005
• 2 pack

Replacement switch latch to suit Power Probe 3 circuit testers.

• 2 pack
• Original code: PPSL3