HORUSDY 86845 30-Piece Back Probe Kit with Multimeter Leads and Piercing Probes

For automotive electrical work that calls for access to sensor connectors and wiring harnesses, the HORUSDY 86845 Back Probe Kit brings several probe styles and test connections together in one 30-piece set.

Straight, 90-degree, and 135-degree stainless steel back probes offer different angles for reaching tight connector areas during circuit testing. The varied shapes help adapt the probe approach to the connector being checked.

Need to test a circuit while keeping the connector assembled? The kit also includes leads with alligator clips and wire-piercing probes, giving you multiple ways to make a test connection.

Key points

The set includes 15 stainless steel probes in straight, 90-degree, and 135-degree styles, plus five banana plug wires with alligator clips, five nickel-plated copper clips, and five wire-piercing probes. This assortment supports different connection points during automotive electrical diagnosis, from accessible wiring to compact harness connectors.

The multi-angle back probes are designed to reach tight harness connectors, fuel injectors, and automotive sensors without damaging wiring insulation or connector seals during electrical testing. The wire-piercing probes provide another way to contact a wire when that approach is needed. The back probes are rated for up to 30 volts, making the set suitable for automotive electrical systems, ECU diagnostics, and sensor testing within that rating.

Five distinct wire colors help distinguish test connections when tracing more than one circuit. Stainless steel probes and nickel-plated copper clips are specified for workshop use, with materials selected to resist corrosion and maintain conductivity. Buyers often highlight the kit’s range of adapters, usefulness with automotive sensor connectors, and versatility, feedback on reading accuracy is mixed, so readings should be interpreted with the circuit and test setup in mind.

Tips for day-to-day use

Choose the probe angle that gives you access to the connector without forcing the tool into place. For a straightforward multimeter check, the banana plug wires and alligator clips provide a way to connect the test leads to a circuit point. When testing requires contact through wire insulation, use one of the piercing probes for that task. Keeping the color-coded wires and probe styles organized can also make it easier to distinguish connections while working through a diagnostic sequence.

Everyday use

This kit is intended for automotive circuit diagnosis, including checks around sensors, fuel injectors, wiring harnesses, and ECU-related circuits. For example, when investigating a sensor connection in a crowded engine bay, a technician can select a straight or angled back probe to reach the connector, then connect test leads as needed for a multimeter measurement. The multiple probe shapes make this a more adaptable approach than relying on a single straight test pin, while the separate piercing probes offer another method for wire access.

Use the probes and leads within the stated 30-volt rating. Selecting the right probe for the access point helps keep the test setup suited to the task and the connector being checked.

What to clarify

What is included in the set? It contains 15 stainless steel probes, five banana plug wires with alligator clips, five nickel-plated copper clips, and five wire-piercing probes, for 30 pieces total.

What voltage are the back probes rated for? The back probes are rated for up to 30 volts, for automotive electrical systems, ECU diagnostics, and sensor testing within that rating.

Can the probes reach angled or tight connectors? The set includes straight, 90-degree, and 135-degree back probes, offering different angles for access to tight harness connectors and automotive sensors.

When it makes sense

The HORUSDY 86845 is a practical fit for automotive technicians and hands-on electrical troubleshooting that calls for several ways to access and test circuits. Its range of probe angles, color-coded wires, clips, and piercing probes supports varied connection needs in one kit, especially when working around sensor connectors and harnesses.