The Testo 750-2 is your go-to digital voltage tester for quickly checking live circuits, continuity, and crucial GFCI performance on the job. It’s built tough for Australian conditions, making it simple to confirm de-energisation before you get hands-on.

Anyone who's had to trace a faulty circuit on a sweltering roof knows the value of clear, reliable readings. This unit helps you work safely and efficiently, even in tricky spots.

Best For

• HVAC service technicians
• Electricians and apprentices
• General maintenance teams
• Anyone needing to verify circuit voltage or GFCI function

Compatibility

The Testo 750-2 is designed for testing AC and DC voltage circuits from 12V to 690V. It's suitable for standard electrical systems and can perform GFCI tests on AC outlets by applying a 35 mA load. This makes it ideal for residential, commercial, and light industrial electrical work where safety and precise voltage detection are critical.

If you're running a different model, check fittings and specs before ordering.

Features

• GFCI Test Function: Applies a 35 mA load and vibrates to confirm GFCI circuit trip, essential for safety checks.
• All-Around LED Voltage Indication: Patented, easily viewable LED display ensures clear readings from any angle.
• Low Input Impedance: Helps prevent ghost voltages and provides more accurate readings.
• Phase Sequence Test: For determining motor rotation and polarity detection on VDC measurements.
• Continuity Test & Flashlight: Built-in functionality for quick circuit checks and illuminating dark workspaces.
• High Safety Rating: Meets CAT IV 600 V and CAT III 690 V safety standards for peace of mind.

Technical Specifications

What's in the Box

• Testo 750-2 Digital Voltage Tester with GFCI
• Batteries (2x AAA)
• Measuring tip protector
• Measuring tip caps

Using It on the Job

1. Pre-Use Check: Always visually inspect the tester for any damage to the casing or leads before use.
2. Voltage Test: Insert probes into the circuit to determine voltage. The all-around LED display will clearly indicate voltage presence.
3. GFCI Circuit Test: For AC outlets, activate the GFCI test function. The tester will vibrate as a 35 mA load is applied, confirming the circuit trip if working correctly.
4. Continuity Check: Use the continuity function to verify open or closed circuits quickly.
5. Phase Sequence: Determine the rotating magnetic field or polarity for DC measurements as needed.
6. Storage: After use, store the tester in a clean, dry place, ideally in a protective case to prevent damage.

Limitations & Safety Notes

• Always follow safe work practices and local electrical codes when testing live circuits.
• Ensure the tester's CAT rating matches or exceeds the application's requirements.
• Do not use if the device or probes show any signs of damage.
• This tool is for voltage and circuit testing only; it is not an insulation tester or earth leakage clamp.
• Follow Australian standards and Safe Work guidance for electrical safety at all times.

When doing a GFCI test, make sure you've got everything important unplugged on that circuit first. Nothing worse than tripping a breaker and resetting a bunch of clocks or losing someone's unsaved work. Test the RCD, reset, then plug things back in. Simple.

Pair With

This Testo voltage tester pairs well with a good set of electrical multimeters and clamp meters for more detailed diagnostics, or a robust transport case to keep your gear safe on site.