The ET2031B Universal Line Kit is a versatile, multi function diagnostic set designed for fast, secure connection to vehicle wiring during general engine testing and circuit evaluation. It enables quick probing, signal access, and component activation across a wide range of automotive systems, making it an essential tool for efficient fault finding and reliable electrical diagnostics.

This kit comes with a bonus multimeter - offering a comprehensive diagnostic solution.

• Dual-Function LED Testers - these two-way LED circuit testers allow for quick identification of power and ground signals, making fault-finding faster and more intuitive.
• Black & Red Multimeter Connector Leads - ensuring reliable connectivity for a wide range of diagnostic tasks.
• Round Terminal Adapters (Male & Female) to Banana Plug - male and female round terminal adapters connect seamlessly to standard banana plugs; ideal for interfacing with OEM wiring and connectors.
• Flat Blade Terminal Adapters (Male & Female) to Banana Plug - Includes flat blade terminal adapters for compatibility with common automotive spade connectors, improving versatility during testing.
• Variable Resistors with Banana Terminals - adjustable resistors allow technicians to simulate loads, test sensor circuits, and diagnose voltage dependent faults with confidence.
• Needle Style Piercing Probes - designed for clean, precise back-probing without damaging insulation; perfect for modern fine gauge wiring.
• Heavy Duty Alligator Clips - these rugged clips provide strong, secure connections to battery posts, chassis grounds, or test points, ensuring stable readings during diagnostic work.

Connects to any Power Probe circuit tester, limiting 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.

• Current limited 5V output
• Safely test computer sensor circuits
• Provides 5V reference voltage
• 12 - 24V input
• 5V output
• Standard 4mm banana connector

An adaptor for measuring DC currents up to 20A (and as low as 1 milliamp). Displays current in realtime. This adaptor works with all Power Probe circuit testers!

• Measures up to 20A DC
• Measures as low as 1 milliamp
• Displays Min / Max
• Backlit LCD

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.

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 PPTK0031 Battery Clip Set is a versatile accessory kit for Power Probe 4 and Power Probe 3EZ circuit testers. It includes heavy-duty battery clips for secure connections, enabling reliable power and ground testing for automotive electrical diagnostics. Perfect for technicians needing robust, easy-to-use tools for efficient circuit testing.

• Original part # PP401

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