These standard measuring cables with straight plugs are a workhorse for any tech checking electrical parameters. Designed for secure connections, they pair up with Testo multimeters, clamp meters, and most other brands you'll find on site.

Having a reliable set of leads that don't fray or give intermittent readings saves a heap of troubleshooting time, especially when you're up a ladder on a scorching Australian summer day, trying to pinpoint a compressor issue.

Best For

• HVAC electricians
• Refrigeration mechanics
• Apprentices learning electrical diagnostics
• General service techs
• Competent DIY owners maintaining electrical systems

Compatibility

These cables are compatible with Testo clamp meters (like the 770 series), Testo digital multimeters (760 series), and generally any other brand of multimeter or clamp meter that accepts standard 4mm straight-plug test leads. If you're running a different model, check fittings and specs before ordering.

Features

• Secure Grip: Rubber-coated handles ensure a firm, safe hold, even in sweaty conditions.
• Standard Tip Size: 4 mm tip diameter with an 18 mm tip length for solid contact in most terminals.
• Safety Rated: Classified as CAT II 1000V overvoltage category for common electrical applications.
• Generous Length: 1.25 metres of cable provides ample reach without excessive tangling.
• Clear Colour Coding: Standard black and red cables for easy identification of polarity and connection points.

Technical Specifications

What's in the Box

• 1 set of standard measuring cables (straight plug)

Using It on the Job

1. Always visually inspect the leads for any cuts, cracks, or damage to the insulation before each use. Replace immediately if compromised.
2. Ensure your multimeter or clamp meter is set to the correct function (e.g., Volts AC/DC, Ohms) and appropriate range for the measurement you are taking.
3. Connect the black lead to the COM terminal and the red lead to the VΩmA terminal on your meter.
4. For voltage measurements, connect the leads in parallel with the circuit or component you are testing. For current, use the clamp meter function or ensure leads are correctly inserted for in-line measurement after de-energising and isolating the circuit.
5. After use, coil the leads loosely to prevent kinking and store them in your tool bag, away from sharp objects or excessive heat.

Limitations & Safety Notes

• Always verify your meter's overvoltage category matches or exceeds the CAT II 1000V rating of these leads for safe use.
• These leads are generally not recommended for measurements in CAT III or CAT IV environments unless explicitly rated by your meter's specification for those categories.
• Always ensure proper lockout/tagout procedures are followed when working on electrical circuits, especially for higher voltages.
• Only use on de-energised circuits unless actively measuring live parameters with appropriate Personal Protective Equipment (PPE) and strict safety precautions.

Keep an eye on the insulation where the cable meets the plug. That's usually the first spot leads start to fail from constant bending. A little heat shrink can extend their life, but don't mess with damaged test leads, just replace them.

Pair With

Pair with a reliable digital multimeter or a hook clamp meter from HVAC Shop for a complete electrical diagnostic kit. Don't forget safety crocodile clips for hands-free testing on certain jobs.