These Testo measuring cable extensions are designed to give you that extra reach and flexibility when working on electrical systems. They're ideal for looping into your multimeter, connecting directly to test sockets, or adapting to different crocodile clips or measuring clamps.

Nothing's more frustrating than short leads when you're trying to reach a board in a tight cabinet; these extensions mean you can get the job done without stretching or having to move your instrument constantly.

Best For

• HVAC service technicians
• Electrical installers and apprentices
• Maintenance teams working with electrical systems
• Anyone needing extended reach for electrical measurements

Compatibility

These measuring cable extensions are compatible with any measuring instrument that uses standard banana jacks. They're suitable for direct connection to test sockets and can be used with various crocodile clips, including Testo safety crocodile clips (0590 0008), as well as measuring clamps from other manufacturers. If you're running a different model, check fittings and specs before ordering.

Features

• Extended Reach: Provides an additional 1115 mm (43.898 inches) of cable length for awkward spots.
• Universal Connectivity: Equipped with straight plugs for attachment onto standard measuring cables and banana jacks.
• High Safety Rating: CAT IV 600V and CAT III 1000V overvoltage category ensures safe operation in various electrical environments.
• Robust Current Capacity: Handles a maximum current of 10 A, suitable for most common electrical measurements.
• Flexible Use: Perfect for connecting to test sockets or for extending the reach of crocodile clips and other measuring clamps.

Technical Specifications

What's in the Box

• 1 set of Testo Measuring Cable Extensions (straight plug), 1115 mm length

Using It on the Job

1. Safety First: Always ensure the circuit is de-energised and isolated before making connections, or use appropriate PPE for live work.
2. Connect to Instrument: Plug the straight end of the extension cable into your multimeter or other measuring instrument's banana jack.
3. Extend Your Reach: Connect the other end of the extension to your standard measuring cable, or directly to a test socket or compatible accessory like crocodile clips.
4. Ensure Secure Connections: Always double-check that all plugs are fully seated and connections are firm to avoid inaccurate readings or electrical hazards.
5. Perform Measurement: Proceed with your electrical measurements, taking advantage of the extended reach.
6. Inspect and Store: After use, inspect cables for any damage (cuts, abrasions). Clean if necessary and store them neatly to prevent kinking.

Limitations & Safety Notes

• Do not exceed the maximum current rating of 10 A.
• Always adhere to the specified overvoltage categories (CAT IV 600V / CAT III 1000V) and ensure your instrument matches or exceeds these ratings.
• Regularly inspect cables for wear, cuts, or damaged insulation. Replace immediately if any damage is found.
• Follow Australian standards and Safe Work guidance for all electrical measurement procedures.
• Ensure connections are clean and free of corrosion for accurate readings.

Tradie Pro Tip

When you're working on crowded electrical panels, a quality set of extensions like these can save you a stack of time and prevent accidental short circuits by giving you the space you need to work safely. Just make sure to always use the correct overvoltage category for the job.

Pair With

Pair these extensions with a Testo digital multimeter, a set of Testo safety crocodile clips, and a range of other electrical testing accessories for a comprehensive toolkit.