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Set of four coloured mini back probes, 21 mm long

Electronic Specialties Inc

Electronic Specialties Inc Mini Back Probes/Wire Piercers 21 mm

SKU CH-6EF4-JWW7T

Four 21 mm probes back-probe weather-pack connectors or pierce small-gauge wires using included adapters and standard 4 mm banana plugs

  • Back-probe weather-pack connectors without damaging wires
  • Pierce smaller-gauge wires using supplied adapters
  • Connect to standard 4 mm banana-plug test leads
  • Four colour-coded probes for quick identification
  • 21 mm probe length reaches deep terminals

What these probes do

This set contains four colour-coded back probes for automotive diagnostic work. Each probe is 21 mm long and fits standard 4 mm banana plug test leads. The probes slide into weather pack style connectors to access signals without damaging wire insulation. They are designed for technicians who need non-invasive access to sensor circuits.

The probe length that decides fit

The 21 mm probe length determines whether the tip reaches the terminal inside a given connector housing. Shorter probes may bottom out before contacting the pin, while longer ones can bend or miss the contact entirely. Check the connector depth on the vehicle before deciding if this set will work for the job.

Behaviour under sustained load

The probes are intended for brief voltage or resistance checks rather than continuous current carrying. Extended use at high current can heat the small contact area and affect reading accuracy. For long-term monitoring, a permanent tap or breakout harness is more appropriate than relying on back probes alone.

Highlights

  • Back-probe weather-pack connectors without damaging wires
  • Pierce smaller-gauge wires using supplied adapters
  • Connect to standard 4 mm banana-plug test leads
  • Four colour-coded probes for quick identification
  • 21 mm probe length reaches deep terminals

Specifications

No published specifications for this item yet.

Questions about this item

How deep does the 21 mm probe reach into a weather-pack connector?

The 21 mm probe length is designed to slip into the back of weather-pack style connectors and contact the signal pin without damaging the wire insulation.

What test-lead connection does the set use?

Each probe accepts a standard 4 mm banana plug, so it works with most test lead kits already in the field.

What is included for mounting or attaching the probes?

The set includes four colour-coded probes (red, black, green, yellow) plus pierce adapters that push onto the probe tips for wire-tapping applications.

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