FNANJWQ 20 Pcs 0.7mm Test Probe Pins Back Probe Kit, Multimeter Probes

If you work on electrical systems—whether in cars, electronics, or home wiring—you know how frustrating it is to try to probe a connector without damaging it. These back probe pins let you test circuits cleanly, without piercing insulation or forcing your multimeter leads into tight spaces. This set includes 20 probes: 10 black and 10 red.

Each probe features an ultra-fine 0.7mm needle tip that slides gently between the wire and the connector seal. No cutting, no piercing, no damage to the wiring harness. The needle measures approximately 0.79 inches (2 cm) long, giving you enough reach to get into tight spots like fuse boxes, sensor connectors, and engine control modules. Each probe measures about 3.23 x 0.32 x 0.32 inches (8.2 x 0.8 x 0.8 cm) and is made from durable plastic and metal.

Here's how to use them: Slide the needle tip into the back of a connector, alongside the wire, until it makes contact with the terminal inside. Connect your multimeter lead to the other end of the probe. Now you can take readings without disturbing the connection or damaging the wire. The color-coded probes (red and black) help you keep track of positive and negative connections.

These probes are suitable for a variety of electrical diagnostics. Use them for testing sensors, checking continuity, measuring voltage, or tracing wiring faults. They work with most standard multimeters and are ideal for automotive, electronics, and DIY electrical work.

You get 20 probes in one pack—10 black and 10 red. That's enough for multiple test setups or to keep spares in your toolbox. The compact size makes them easy to store in a multimeter case or drawer.

Probe, test, and diagnose with confidence. A simple, damage-free solution for electrical testing.