Martindale Electric has created a comprehensive Installation and Fault-Finding kit that gives electricians and installers a fantastic bundle of products for both installation testing and troubleshooting.

The exclusive kit includes a multifunction installation tester, a circuit breaker/fuse-finder, plus an advanced socket tester ideal – for first line troubleshooting – but hurry, as it’s only available until 30^th April 30th 2026.

Built around the Martindale ET6000 Multifunction Installation tester, the FD500 Fuse Finder and EZ165 Socket tester are supplied FREE when the special kit ET6000PROMO is ordered. The free items are delivered alongside the MFT, so there are no forms to fill in and no additional waiting for the extra items.

The ET6000 Multifunction Tester performs the measurements required for verification of electrical safety of installations, in accordance with the latest 18th Edition Wiring Regulations. The unit has reliable high-current and non-trip loop testing together with a high level of input protection and a CAT IV safety rating.

Meanwhile, the EZ165 Advanced Socket Tester detects 28 socket wiring fault conditions and checks mains voltage levels. In addition, it verifies the earth wiring by carrying out a non-trip earth loop test and indicating its value in six discrete ranges from less than 1.7Ω to 500Ω.

What’s more, the FD500 Circuit Breaker and Fuse Finder Kit can find which fuse or breaker controls a circuit. It also enables tracing from socket to socket on a circuit.

For purchasing details and terms and conditions, visit: www.martindale-electric.co.uk/2026-promo

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Martindale Electric has extended its industrial socket testing offering with a brand new version of the popular CP201 16 Amp and 32 Amp single phase socket testers.

The new enhanced CP201 features a much simplified user interface allowing easy interpretation of results. Wiring faults are now instantly indicated by the three bright LEDs which mirror the layout of the pins in the plug. Plus, there is a look-up chart on the tester to aid quick diagnosis of common faults. In addition, the CP201 now checks the mains voltage level, indicating a high or low supply voltage at the outlet.

Designed for quick and easy testing of single-phase industrial socket wiring, the CP201 includes both 16A and 32A industrial versions of the Martindale classic check plug, fitted with a 230V 16A or 32A plug to BS EN IEC 60309-1.

The robust ABS moulded housing of the new CP201 also gives lasting durability and is maintenance free.

Socket testers are not an alternative to the full verification of wiring installations. However, as a first-line indicator, they are an essential tool for all maintenance teams.

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Martindale has launched two new promotional kits designed to give electricians and installers a great bundle of products for both installation testing and troubleshooting while, as always, helping keep you and your teams safe.

These exclusive kits are based around the Martindale ET6000 and ET6500 Multifunction Installation testers and supplied with a range of free Martindale test equipment – ideal for general electrical work and installation. Plus, when the special kit is ordered the FREE items are delivered alongside the MFT, so there are no forms to fill in and no additional waiting for the free items.

ET6000PROMO – Installation & Fault-Finding Kit

The Martindale Electrician kit includes a range of essential tools for testing and troubleshooting electrical circuits, including the ET6000 Multifunction Installation Tester, an EZ165 advanced socket tester for first line testing and earth loop checking, plus a handy FD500 fuse finder with transmitter to help identify the right circuit, fuse and connections.

ET6500PROMO – Advanced Installation & Safety Kit

The Martindale Installer kit includes a top of the range ET6500 18th Edition Multifunction Installation Tester complete with EV adaptor, plus a VT25 Voltage Tester and matched PD690SRD proving device, ideal for checking voltage is present in a circuit and taking basic electrical measurements. To aid with safety, it is also supplied with a Martindale LOKKIT1 lock off kit, and voucher for free place on an online Lock-out, Tag-out introductory course.

These fantastic Martindale offers are only available for a limited period with the special promotion running until 30^th April 2026.

For purchasing details and terms and conditions, etc, visit: www.martindale-electric.co.uk/2026-promo

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Safe isolation is the cornerstone of electrical safety, and it is a rigorous process, but other hazards can still be present when working on electrical systems, warn Martindale Electric.

One such issue is the injuries caused to engineers, contractors, electricians and other workers coming into contact with unexpectedly live metal parts. This includes items such as metal casings on equipment or appliances, pipework, and other types of metalwork which should be earthed. This invisible danger can be present in any workplace situation ranging from simple domestic systems through to commercial and industrial installations.

Martindale is running a new awareness campaign ‘STOP. No Check. No Contact!’ reminding anyone working on or near electricity not to take any chances with exposed metal parts and to always check first, as they may be live.

“Standard industry-wide safe isolation procedures safely disconnect the supply from the circuit to allow safe rework, maintenance, or installation to take place,” said Steve Dunning, Managing Director at Martindale Electric.

“They do not cover checking for live metal parts though, so incorporating this discipline into established work processes will further minimise risk and help ensure safer working practices. Remember, if the metalwork is not checked for being live don’t touch it:  Stop. No check. No contact!”

By linking the STOP. No Check. No Contact! – message to the many safe isolation products and activities from Martindale the focus is on building awareness around this important safety issue.

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Socket testers are not an alternative to the formal verification of wiring installations, but as a first line indicator they are an essential tool, explains Steve Dunning, Managing Director at Martindale Electric.

When properly specified, socket testers provide a fast and effective solution to identifying potentially unsafe installation and wiring faults, particularly prior to installing new plant and equipment.

All socket testers should check that the earth, live and neutral are the right way round but with such a large number of proprietary plugin devices available,  additional test functions can vary considerably. So, when selecting a socket tester, it’s important to understand the different types available and their capabilities and limitations.

Socket testers are categorised as either simple, advanced or professional  with the key differentiator being the ability to measure and display either ranges or numerical values for earth fault loop impedance.

It is also worth bearing in mind that although many of these devices will indicate some of the basic electrical faults that may be found in socket-outlet circuits, some of the simpler versions cannot be relied on to indicate more advanced faults, which can be potentially dangerous.

These 10 pointers will help you help your customer select the right one for the job.

1. There are so many socket testers available, what do I recommend?

Socket testers can be split into categories: simple, advanced and professional. All socket testers will check that basic connections have been made correctly; however, advanced/professional socket testers will have more functionality with respect to earth testing.

2. So, which tests will a simple socket tester perform?

All testers check that a socket is functioning; this includes checking for live and earth reverse, live and neutral reverse and that there is earth connected. However, they do not check if the socket is adequately earthed for safety. Some offer added features. This may include a buzzer in addition to LEDs to indicate a good socket, or they may show a combination of indicators to identify which particular fault type is present.

3. What is the difference between an advanced and professional socket tester?

The key differentiator is related to checking the effectiveness of the protective earth. More advanced testers indicate the value of loop impedance via LEDs (examples are the Martindale EZ165 and EZ365) or show numerical values. A reliable earth loop impedance measurement is essential to ensure that over-current protection devices achieve a fast enough disconnection time to avoid electrocution.

4. I’ve heard there’s a test that no socket tester can perform. What is it, and why?

There is one fault that a socket tester and indeed no other piece of equipment can easily find, the swapping of the earth and neutral wires. This is because the earth and neutral are common at the substation (if not closer), so electrically, they are indistinguishable.

5. What is the ‘supply reversed’ test on some socket testers?

This is a cross-polarity test. Although all socket testers are capable of identifying wiring faults at the socket, including live-neutral errors, they will not detect when the incoming supply polarity has been reversed. This serious fault condition where L-NE connections have been reversed at the supply and require a special additional test. The Martindale BZ701 has this feature.

6. Will my socket tester test an RCD?

A socket tester will only check the functionality of an RCD in a circuit i.e. the ability to trip. RCD testing requires the use of a tester or multifunction installation tester with RCD test capability which can measure time to trip.

7. Does a socket tester help with 18th Edition installation testing?

It’s important to appreciate that socket testers are not an alternative to the full verification of wiring installations. For testing installations, professional loop testers and multifunction testers suitable for carrying out all the tests needed to verify the safety of domestic, commercial and industrial wiring installations (according to the 18th Edition Wiring Regulations) are required.

8. In summary, what can I use a socket tester for?

A socket tester is a first-line indicator to identify potentially unsafe installations and wiring faults. Socket testers offer a fast and effective solution when properly specified. They can also be particularly useful as a service tool in identifying potentially unsafe conditions prior to carrying out work on existing electrical systems and equipment or before installing new appliances.

9. I also need to check industrial outlets – can a socket tester help?

Manufacturers such as Martindale offer a full range of industrial socket testers, specifically for this application. These perform some of the basic tests similar to standard 13A socket devices but offer different pin configurations, different voltage levels and three-phase checks.

10. Can socket testers help with EV chargers?

There is a new classification of socket tester capable of first line checking of EV charge points. The Martindale BZ820-EV is an example, being able to connect directly to a Type-2 EV charger to perform tests similar to a basic socket tester. It can also simulate connection to a vehicle for additional tests.

Conclusion

When it comes to the design of a socket tester, quality and durability should be key considerations. Testers should ideally feature a tough sculpted design for easy removal and be durable enough to withstand the roughest of handling, thus providing many years of performance.

Socket testers offer a fast and effective solution to identify potentially unsafe installations and wiring faults when correctly specified as a first-line indicator. They can also be helpful as a service tool in identifying potentially dangerous conditions before carrying out work on existing electrical systems and equipment. Selecting the right tester for the job is key.

The Electrical Safety-First Best Practice Guide 8 (version 2) Selection and Use of Plug In Socket Testing Devices is an excellent source of information.

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Martindale Electric has unveiled two brand new handheld portable appliance testers (PAT) with the launch of the HPAT550 and HPAT650.

Compact, easy to operate and feature-rich, the new testers are designed to simplify PAT testing while maintaining full compliance with testing requirements for Class I and Class II appliances.

Replacing the extremely popular HPAT400, HPAT500 and HPAT600 the new models are built for portability and convenience. They offer one-button automatic testing and a clear PASS/FAIL indication, backed by measured values shown on a high-resolution colour display. These features, combined with USB-C fast charging and a lightweight, rugged design, make the HPAT series ideal for engineers conducting routine testing on the move.

The HPAT550 and HPAT650 deliver all the essential tests needed to verify the safety of electrical appliances. Both instruments include an IT-safe 200mA earth continuity test, selectable insulation resistance testing at 250V and 500V, and a dedicated test mode for IEC power leads. The 250V insulation test option ensures compatibility with surge-protected devices, giving testers greater flexibility across a wider range of applications.

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Electricians rely on test equipment every day to keep installations safe, compliant and problem-free. Getting to know the key test products and how they are used can help you serve your customer better, says Steve Dunning, Managing Director at Martindale.

Electrical testing isn’t just a regulatory requirement – it’s a vital part of keeping people and structures safe. Whether it’s verifying that a socket is wired correctly or proving a circuit is dead before work begins, the right testing equipment gives electricians confidence on the job.

Top five

When you stock the testing tools that your customers trust, you’re not only supporting safer working practices but building long-term customer loyalty. Here are five of the most in-demand pieces of electrical test equipment.

1. Multi-Function Testers (MFTs)

Multi-function testers are indispensable. They can perform a range of tests including continuity tests, insulation resistance tests, earth fault low impedance tests and wiring polarity, among others.

Combining so many tests into one easy-to-use device means less equipment to carry around and fewer cables to connect. As these devices walk the user through each step and flag any issues, they are far less likely to make errors or have to perform tests for a second time. By cutting out the need to swap between different devices, MFTs are also real time savers and can make a significant difference on larger projects or jobs where deadlines are tight.

For wholesalers who want to stock efficient MFTs, the Martindale ET6000 Series covers a wide variety of essential testing tasks, including high-current and non-trip earth loop impedance testing, voltage measurement, phase sequence indication and Auto RCD testing. The ET6300 and ET6500 are also EV ready.

2. Voltage Indicators

Voltage indicators (VIs) are critical for verifying the presence or absence of voltage in a circuit, providing a quick visual or auditory indication that helps determine whether it’s safe to proceed with work. VIs should function without a battery. This is because if the battery in the device is flat, a false ‘dead’ reading could be made on a live circuit.

We are often asked why multimeters or non-contact voltage detectors can’t be used instead. The reason a Multimeter is not suitable is because it is too easy to select the wrong range and, as previously highlighted, they use batteries. Non-contact voltage detectors also require a battery and a standard proving unit cannot prove the device is working correctly – a specialist proving device is needed for this.

3. Proving Units

Incorporating voltage indicators and voltage testers into your electrical safety strategy makes for a strong and reliable safe isolation procedure. But to truly ensure a circuit is not live, it’s crucial users check their voltage indicator (VI) with a known source, such as a proving unit, both before and after they test the circuit. This double-check confirms the VI is working correctly.

Martindale offers several proving units for a variety of voltage levels – 240V, 440V and 690V – from the entry level PD230SRD to the PD690SRD, which supplies the full test voltage for both high and low impedance voltage indicators, test lamps and meters.

4. Portable Appliance Testers (PAT Testers)

PAT testing is an important part of electrical safety in the workplace and for good reason – the Health and Safety Executive (HSE) reports that a quarter of all reportable electrical accidents involve portable appliances. The Electricity at Work Regulations (1989) states employers are required to ensure that any electrical equipment that could cause injury is kept in a safe condition.

A good PAT tester should be light, compact and easily portable as most tests will be performed on site rather than in a workshop. The tester should have a clear pass/fail indication, ideal for quick on-the-go testing, while straightforward menus and inbuilt auto-test sequences are also very useful, especially for those new to PAT testing.

When advising on testers, it’s worth knowing the purpose; someone carrying out occasional tests on low-risk equipment might only need a basic pass/fail tester, while a contractor working across multiple client sites might benefit from a tester with onboard data storage.

5. Socket Testers

A socket tester is a first-line indicator to identify potentially unsafe installations and wiring faults. While all socket testers will confirm that fundamental connections like earth, live and neutral are correctly established, those classified as advanced or professional also help verify the quality of the earth. The results from these tests are typically shown through LEDs that light up in different patterns to alert the user to the current state of the socket in terms of presence of voltage. In some models, an audible buzzer might also be used to indicate the status.

There are a wide variety of socket testers on the market to choose from which can make it challenging to select the most appropriate one. Martindale has a wealth of information on its website outlining the different types available and their capabilities. The Electrical Safety First guidance note Best Practice Guide 8 (version 2) “Selection and Use of Plug In Socket Testing Devices” is also an excellent source of information.

Meeting demands

Stocking these five essential pieces of test equipment ensures that your customers have access to the essential tools required for electrical safety and compliance. By offering reliable, user-friendly products from reputable manufacturers, you can meet the demands of professionals in the field and support safe electrical practices across various industries.

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Martindale Electric has announced the launch of the TL326-EV, a new electric vehicle (EV) charger adapter designed for accurate and easy testing of EV charge points.

With the continued expansion of EV infrastructure, the need for reliable and straightforward testing solutions has never been greater. The TL326-EV allows users to connect a range of test equipment to an EVSE charging point via a Type-2 connector.

Designed with both single-phase and three-phase systems in mind, the TL326-EV has a CP selection switch that simulates various states: vehicle connected but not ready to charge; vehicle ready to charge; and a fault simulation position which induces a failure of the CP signal that should cause the EV charger to stop charging. The unit is also equipped with LED status indicators giving a clear visual confirmation of the operational state of the charge point before further testing.

For electrical contractors working with EV infrastructure, the TL326-EV simplifies the process of carrying out essential tests such as voltage and frequency measurement, phase indication, phase sequence verification, insulation resistance testing and loop and line impedance checks. You can also test various RCD configurations, ensuring that critical safety functions are operating correctly.

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With a keen emphasis on keeping safe around electricity, Martindale Electric has announced the launch of its new website; www.martindale-electric.co.uk.

The revamped site is a testament to Martindale Electric’s commitment to ‘Keeping You Safe’ with an enhanced and expansive new resource area, a knowledge hub for electrical safety materials and education.

“We wanted our new website to be more than just a place to look at products, important though that is,” said Steve Dunning, Managing Director of Martindale Electric. “Instead, it’s a reflection of our commitment to electrical safety and supporting the professionals who work in this critical industry.”

With over 95 years’ heritage, and recognising the challenges faced by professionals, Martindale Electric has produced a website that showcases its renowned products and significantly expands its educational offering.

The comprehensive resource area delves into critical topics such as safe isolation, Portable Appliance Testing (PAT), and socket testing, among others. It can be an information source for electrical professionals, offering up-to-date information, best practices, and guidance on the latest industry standards and regulations. Whether it’s detailed product information, instructional videos, or downloadable guides, datasheets and manuals, users can easily find what they’re looking for, enhancing their knowledge and skills in electrical safety.

Martindale Electric has also integrated a support section and Help Centre into the website. This section offers direct access to the company’s team of experts, enabling users to seek advice, share feedback, or request assistance with specific challenges.

The new website also includes a feature allowing users to register their products online, enhancing their access to warranties, support and updates. This registration process is simple and adds an extra layer of value to the Martindale Electric experience, ensuring customers get the most out of their investments.

For more information, to explore the new resource area, or to seek support from Martindale Electric’s team of experts, please visit the new website at https://martindale-electric.co.uk/

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For electricians and contractors who need an accurate and reliable 18^th edition tester, the new ET6000 Multifunction Installation Tester from Martindale Electric fits the bill.

Replacing the successful ET4000, the Martindale ET6000 is the new entry-level model in the Martindale range, perfect for electricians looking for a reliable basic installation tester. The ET6000 covers all the essential testing functions required to test to the 18th Edition Wiring regulations, including fast, reliable high current and non-trip loop testing, auto RCD and ramp test (with all results on one screen), voltage measurement and phase rotation indication.

The ET6000 has a full-colour TFT display, which provides clear, easy-to-read results and connection information. The tester also features multiple, context related help screens that guide users through the testing process, displaying easy-to-read test connection diagrams that are colour-coded to match the supplied lead set, simplifying the most complex tasks.

The ET6000 boasts a high level of input protection with a CAT IV safety rating, ensuring that users are protected when working in challenging environments. The tester is supplied with a full set of high quality 4mm test leads and a Martindale TL207 mains test lead, all contained within the test and go carry bag.

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