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Insulation Testers For Hire

Looking to ensure the safety of your electrical systems? Our website offers a range of insulation tester test equipment available for rent, featuring renowned brands like Fluke, Megger, and Sonel.

Our inventory includes Megohmmeters, Digital Insulation Testers, and Fluke Insulation Resistance Testers. Megohmmeters gauge insulation resistance, while Digital Insulation Testers provide precise data.

Trust in renowned brands for superior performance. Rent our top-tier insulation tester equipment today to safeguard your systems, minimize risks, and ensure seamless operations.



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Low and High Voltage Insulation Resistance or Megger testers.

Insulation Resistance Testers (commonly called “Megger” testers) are used to test the integrity of the insulation of one or more components of an electrical system. In any electrical installation, insulation is one of the most essential elements. This means insulation testing is an important tool to determine the quality and integrity of the insulation of a system. Insulation resistance testers are used to conduct tests using a DC test voltage of an electrical system to ensure the insulation is fit for service.

Understanding Insulation Resistance Tests

An insulation resistance test is a fundamental procedure to assess the quality and safety of insulation materials within electrical equipment. In other words, an insulation resistance tester measures the resistance to current leakage across an insulator, providing crucial data to prevent electrical shocks and fires.

The process involves applying a direct voltage to the insulator and measuring the resulting current. If the insulator is sound, the resistance will be high, reflecting minimal current leakage. Conversely, deteriorating or poor-quality insulation will exhibit low resistance, indicating significant leakage.

Insulation resistance testing is a critical part of a proactive maintenance strategy, especially for high-voltage electrical equipment. Regular insulation testing can preemptively detect issues, helping avoid unexpected equipment failure, enhance safety and save on costly repairs or replacements.

With an insulation resistance tester, one can understand insulation health accurately, helping to maintain an efficient, reliable and safe electrical system. Hence, insulation resistance testing is a non-negotiable aspect of electrical equipment management.

Our Insulation Resistance Testers

Fluke 1503

This rugged and compact insulation tester analyses insulation resistance in both residential and commercial settings. With the capacity for insulation testing from 0.01 MΩ to 2000 MΩ, you’ll benefit from features such as live circuit detection and the ability to measure AC/DC voltage from 0.1 V to 600 V.

  • Results are presented on a large, backlit display
  • Save battery power with auto power off
  • Remote test probe
  • Offers lo-ohms earth bond continuity (200 mA)
  • Test Voltage up to 1000V

Fluke 1653 

Another strong performer from Fluke, this Installation tester works side by side with you to verify the safety of your electrical installations. You can use the Fluke 1653 in domestic, commercial and industrial installations and can be certain that fixed wiring is correctly installed.

  • Fast and easy operation with two measurements available at once and a dual display
  • High loop current mode with fast measurements
  • Complete kit — which means you get detachable leads that can be replaced in case of damage or loss — as well as a hard case to protect your instrument in the field

Fluke 1663

This multifunction tester is the obvious choice for an installation professional. Offering the capacity to test to all local regulations, you’ll have complete documentation and testing continuity at L-N and N-PE inputs. With the Fluke 1663 insulation resistance tester, you have the capacity to test at multiple test voltages — 50V, 100V, 250V, 500V and 1000V. With the Fluke 1663 you’ll enjoy full-featured functionality in a compact and lightweight tester. No matter the skill level of your workers, you’ll be able to perform quick and efficient testing.

  • Measure RCD switching time and tripping level
  • Measure motor winding with continuity test
  • Check wiring polarity to detect broken N wires

Kyoritsu 3124

The Kyoritsu 3124 is a miniature and lightweight insulation tester offering a wide range of insulation testing up to 100 GΩ and at a variable test voltage from 1kV to 10kV. The DC voltage output is shown on the digital display, and after every test, the unit automatically discharges the charge stored in the circuit under test.

  • Comes with a range of included leads and accessories (including a hard case)
  • Suited for heavy duty electrical maintenance and servicing of industrial equipment and installations

Megger 1020 

When you need quality performance, you can rely on the Megger 1020, an insulation tester which is specifically designed to test and maintain high voltage electrical equipment. When you hire the Megger 1020, you have the capacity to perform diagnostic tests like polarisation index tests, dielectric absorption, and dielectric discharge tests.

  • The Megger 1020 rental package includes a range of accessories and leads for testing in the field
  • Variable test voltage from 50 to 5,000 to 10,000 V
  • Automatic IR, PI, DAR, SV and DD tests

Sonel MIC-10k1

This 10kV tester — designed specifically for the examination and upkeep of high-voltage electrical equipment — packs a powerful punch. Not only does it excel in conducting standard insulation resistance tests, but it also brings a suite of diagnostic assessments to the table. These include polarisation index, dielectric absorption ratio, step voltage and dielectric discharge tests — all critical for comprehensive equipment evaluation.

  • Capable of 4 hours of continuous testing
  • Has digital filters for measurements with strong interferences
  • Can work in environments where electromagnetic interferences of 400 kV occur
  • Works with an internal rechargeable battery or 230VAC mains supply

Choosing the Right Insulation Resistance Tester For Your Project

The appropriate insulation resistance tester plays a crucial role in executing effective and safe insulation resistance testing. It aids in gathering essential insights regarding the health of your system’s insulation, which promotes proactive maintenance and enhances safety. Whether it’s a Kyoritsu or a Megger, selecting the suitable tester for your project is pivotal. Here are some factors to consider:

Type of Tester

There are several varieties of insulation resistance testers. A Megger tester is frequently preferred for its reliability, user-friendliness and extensive testing capabilities. But apart from Megger, Kyoritsu, Sonel, Fluke and a handful of other reputable brands offer equivalent benefits with their unique set of features and capacities.

Voltage Range

The tester should be able to apply the required voltage for your specific insulation resistance test. High-voltage testers are suitable for heavy-duty equipment, whereas low-voltage testers can be used for smaller equipment.

Testing Capabilities

A good tester should not be limited to standard insulation resistance tests. It should also perform tests like step voltage, dielectric absorption and leakage current tests. A comprehensive approach to insulation resistance testing provides a thorough assessment of your insulation’s condition.

Safety Measures

Ensuring safety is pivotal when conducting insulation resistance testing. To this end, a tester should be equipped with crucial safety features. One of the key safety features is an automatic discharge of test voltage, which eradicates any remaining voltage after the test, protecting both the user and the equipment. Another important feature is a guard terminal, this helps in eliminating surface leakage current, ensuring that the readings are not influenced by unwanted external factors. Additionally, safety-rated test leads are indispensable. These leads establish a secure and reliable connection between the tester and the equipment under test, mitigating the risk of electric shock and guaranteeing accurate readings.

Durability and Consistency

The insulation resistance tester should be designed to withstand rigorous field conditions, demonstrating robustness and reliability. It should provide consistent performance even in challenging environments, making it a dependable tool for electrical professionals.


A user-friendly insulation resistance tester should incorporate features such as a clear display for easy reading of results, a simple operation process for efficient testing and an intuitive interface that aids in seamless navigation. These characteristics can significantly streamline the insulation testing process, making it more efficient and accessible, even for those less familiar with such devices.

Data Storage and Connectivity

Contemporary testers, such as the Megger insulation tester, often have data storage and connectivity options. These allow for easier tracking of insulation health over time and data sharing with relevant parties.

While Megger testers are renowned choices, the ideal insulation resistance tester for your project will depend on your specific equipment and testing needs. By considering the above factors, you can select a tester that ensures accurate and insightful insulation resistance testing, enhancing the safety and efficiency of your electrical system. Opting for the right insulation resistance tester is a proactive move towards effective electrical equipment management, leading to time, cost and potentially life-saving benefits.

Why Choose Brandis Hire for Your Insulation Resistance Tester Rentals

Unparalleled service, commitment and convenience distinguish Brandis Hire in insulation resistance tester rentals. Here’s why you should look no further for your tester hire needs:

Stellar Customer Support

Brandis Hire thrives on offering excellent customer support. Our team, known for their friendliness and proficiency, makes hiring transactions exceptionally smooth. Plus, we provide four hours of FREE technical support with each hire, ensuring you are never left in the dark.

24/7 End-to-End Web Shop

Our digital platform provides a seamless, 24/7 end-to-end shopping experience, allowing you to browse, compare and rent insulation resistance testers at your convenience. The easy-to-navigate webshop ensures you’re just a click away from what you need.

Seamless Transport

Need transportation for your tester across Australia? We’ve got you covered. Brandis Hire organises transit to and from your location. Plus, you won’t incur hire charges while the equipment is in transit, furthering the value of your rental.

100% Australia-owned and Operated

As a local business, Brandis Hire takes pride in supporting local communities while understanding the specific needs of Australian industries. This in-depth local familiarity helps us provide more personalised services every time.

Equipment Sourcing Assistance

If you can’t find what you need in our catalogue, don’t worry. Brandis Hire can also assist in sourcing the equipment you need, we’re committed to ensuring you have the right tools for your projects.

No Lock-in Hire Periods

With Brandis Hire, flexibility is key. We don’t impose lock-in hire periods, giving you the freedom to rent equipment for the duration that suits your project timeline. We’re always reasonable and easy to work with.

Contact Us Today to Hire Insulation Resistance Testers

All of our electrical test equipment is offered on short or long-term hire to locations right across Australia, including regional locations, and is shipped to you in a durable hard case. This ensures you receive it in exactly the same condition as when it left. Plus, you’ll only ever pay for the time you’re actually in possession of the hire equipment thanks to our policy on shipping and returns.

Didn’t find the electrical test equipment you’re looking for? Simply contact us, and it’s likely our test equipment rental team can source it through our extensive network of suppliers.

Need assistance selecting the right Fluke, Megger or Kyoritsu insulation tester? Give us a call or email, we’re always happy to help.
All equipment is supplied with a calibration certificate (“if Applicable”), and tested and checked before we dispatch it and transported in a heavy duty transport case.


How often should insulation resistance tests be conducted?

Insulation resistance tests should ideally be performed during the installation of new electrical systems, as part of routine maintenance or when preparing for a system upgrade. For systems exposed to harsh conditions, more frequent testing may be required. It’s important to follow relevant industry guidelines and manufacturer recommendations for insulation resistance testing.

What are the potential consequences of inadequate insulation in electrical systems?

Inadequate insulation can have serious consequences, including increased risk of electrical shock, fires and equipment failure. Regular insulation resistance tests can help identify deteriorating insulation early, allowing for timely repair or replacement.

Can insulation resistance tests be performed on live circuits?

No, insulation resistance tests should not be performed on live circuits. Prior to testing, the circuit should be disconnected from the power source, and all capacitors should be discharged. This ensures that the insulation resistance tester is not damaged and that the tests are safe and accurate.

Are insulation resistance testers portable and suitable for field use?

Yes. Most modern devices, like Megger insulation testers, are designed to be portable and robust enough for field use. They come with a rugged casing and are compact and lightweight, making them easy to carry to various testing locations.

What safety precautions should be taken during insulation resistance testing?

Safety is paramount during insulation resistance testing. The circuit should be de-energised and adequately grounded before testing. Moreover, the user should wear appropriate protective equipment, such as insulated gloves and safety glasses. Make sure to always follow the instructions provided by the insulation resistance tester manufacturer to guarantee safe operation.

Can insulation resistance testers be used on high-voltage systems?

Yes. Most testers, like ones from Megger, can be used on high-voltage systems. However, it’s crucial to use a tester rated for the specific voltage of the tested system. Always refer to the manufacturer’s instructions to determine the appropriate voltage rating for the tester.

How do insulation resistance testers differ from other electrical testing equipment?

Insulation resistance testers differ from other electrical testing equipment in that they precisely measure the resistance of electrical insulation. They apply a DC voltage across the insulation and measure the current that leaks through it. This differentiates them from equipment like multimeters or circuit testers, which measure other electrical properties.

How does temperature affect the results of an insulation resistance test?

Temperature can significantly impact the results of an insulation resistance test. Generally, higher temperatures decrease insulation resistance, while lower temperatures increase it. For accurate comparisons, test results should ideally be adjusted to a standard temperature, usually 20 °C. Hence, it’s crucial to note the temperature during testing and consider its effect when interpreting the results.

Can’t find what you need? Let us find it for you.

We have a large range of equipment and are backed by a large network of suppliers. We’ll help you find the gear that you need for your next project.

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Delivery and pickup options available

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