Testo 755-2 Current and Voltage Tester

Name: Testo 755-2 Current and Voltage Tester
Brand: Testo
SKU: 0590 7552
Price: 606.94 AUD
Availability: InStock

🛠️ Need the Right HVAC Tool for the Job?

Whether you're quoting a bulk order or chasing hard-to-find tools, we’re here to help.

Get a fast, personalised quote—no pressure, no spam!
Fill out the form below and we’ll get back to you ASAP.

📩 Request a Quote

The Testo 755-2 is a versatile current and voltage tester designed for HVAC techs and electricians. It handles up to 1000V AC/DC and 200A AC, with handy features like phase rotation and a single-lead voltage check.

When you're constantly swapping between measuring voltage, current, and checking continuity on a rooftop unit or in a tight plant room, having a tool that auto-detects and sets itself up saves a heap of time and prevents misreads. This unit helps keep your workflow smooth.

Best For

HVAC service and maintenance technicians
Electricians and apprentices
Industrial plant maintenance teams
Anyone performing regular electrical diagnostics and safety checks

Compatibility

This tester is suitable for a wide range of electrical circuits and systems in residential, commercial, and industrial settings. It's built for general electrical measurement tasks including de-energisation checks, current consumption, and phase rotation in three-phase systems.

It meets DIN EN 61243-3:2010 for voltage testing. If you're running a different model or specific industrial gear, always double-check the voltage and current ratings before connecting.

Features

Automatic Parameter Detection: The meter senses what you're testing and automatically selects the correct measurement type (current, voltage, resistance, continuity) and range.
Phase Rotation Tester: Quickly check the rotating magnetic field direction, essential for commissioning and troubleshooting three-phase motors and compressors.
Single-Lead Voltage Check: A unique feature allowing for voltage checks with only one lead, useful for quick verification.
High Voltage Range: Measures AC and DC voltage up to 1000V and AC current up to 200A, covering most HVAC and industrial applications.
Integrated Flashlight: Handy for illuminating dimly lit panels, plant rooms, and cramped spaces.
Interchangeable Measuring Tips: Allows for easy replacement of worn or damaged tips, extending the life of the tool.

Technical Specifications

Parameter	Measuring Range	Resolution	Accuracy
DC Voltage	6 to 1000 V	0.1 V	± (1.5 % of mv + 3 Digits) for 50-1000 V ± (1.5 % of mv + 5 Digits) for 6-49.9 V
AC Voltage	6 to 1000 V	0.1 V	± (1.5 % of mv + 3 Digits) for 50-1000 V ± (1.5 % of mv + 5 Digits) for 6-49.9 V
AC Current	0.1 to 200 A	0.1 A	± (3 % of mv + 3 Digits)
Measurement Category	CAT IV 600 V / CAT III 1000 V (with standard tips)

What's in the Box

Testo 755-2 Current / Voltage Test Meter
Batteries
Measuring Tips

Using It on the Job

Safety First: Always isolate and lock out power to the circuit you're working on before making connections, unless performing live voltage checks as part of a diagnostic procedure.
De-energisation Check: Use the Testo 755-2 to confirm circuits are dead before commencing work, adhering to AS/NZS 4836 or equivalent safe work practices.
Live Voltage Testing: For live voltage diagnostics, the auto-sensing feature will select the correct range. Use the single-pole test for quick verification on live conductors.
Current Measurement: Open the jaw to clamp around a single conductor to measure AC current draw for motors, compressors, and heating elements.
Phase Rotation: Connect leads to a three-phase supply to quickly check the phase sequence, essential for commissioning and troubleshooting three-phase motors and associated equipment.
After Use Care: Wipe down the tester with a damp cloth, check leads for damage, and store in a protective case to keep it ready for the next call-out.

Limitations & Safety Notes

Always follow local electrical safety regulations and company safe work procedures.
This tool measures AC current only; it does not measure DC current.
Ensure measuring tips and leads are in good condition before each use; replace damaged accessories immediately.
Do not exceed the specified voltage (1000V AC/DC) or current (200A AC) ratings.
Always select the appropriate measurement category (CAT IV, CAT III) for your application, matching the tester and any accessories.

Tradie Pro Tip

That integrated lead holder on the housing isn't just for show. Use it. It stops your leads from tangling in the bottom of your bag or getting snagged when you're pulling the tester out of a tight spot. Simple things like that keep your gear lasting longer and prevent lost or damaged leads.

Pair With

Pair the Testo 755-2 with a non-contact voltage tester for quick preliminary checks and a quality multimeter for more in-depth diagnostics. Don't forget replacement measuring tips and safety crocodile clips from the Testo electrical accessories range.

Common Questions for Testo 755-2 Current and Voltage Tester

What electrical measurements can the Testo 755-2 perform?

The Testo 755-2 is capable of measuring AC/DC voltage up to 1000V, AC current up to 200A, resistance, and continuity. It also includes functions for phase rotation testing and a unique single-lead voltage check.

Are the measuring tips on the Testo 755-2 replaceable?

Yes, the measuring tips on the Testo 755-2 are designed to be interchangeable and can be easily replaced. This feature helps extend the lifespan of the tester, as damaged tips are a common issue for field tools.

Does this tester automatically select the correct measurement range?

Yes, the Testo 755-2 features automatic measurement parameter detection. It senses the circuit and automatically selects the correct range and settings for your test, which speeds up workflow and minimises user error.