A device employing a pointed, pin-like probe to penetrate wire insulation, establishing electrical contact for testing purposes. This instrument allows technicians to assess electrical continuity, voltage, or current without stripping the wire’s protective layer. For example, it can quickly verify the presence of power in a circuit without causing permanent damage to the wiring harness.
The significance of such a testing tool lies in its ability to provide non-destructive testing in many scenarios. Its implementation simplifies diagnostics in automotive, telecommunications, and other electronic systems, saving time and minimizing the risk of wire damage associated with traditional methods. Historically, these devices offered a safer alternative to directly exposing wires, which could lead to short circuits or electrical shock.