Help us stock the items you need
If there is something you require that is not on our site, simply give us a call on 01424 220384 or send us a message via our contact form and we’ll do our best to get it added to our online electrical wholesale store.
Professional Test Instruments for Every Job
Explore a wide range of test instruments to help you work accurately, efficiently and with confidence. Find options to assist with fault finding, verification and day-to-day checks across a variety of electrical tasks.
Test Instruments
This range brings together different types of electrical testing tools in one place. Use these products to support accurate checks, measurements and diagnostics on your projects.
- Test Instruments: Provides a broad selection of electrical testing tools designed to help you measure, verify and diagnose installations and equipment with confidence.
Trusted Brands in Test Instruments
Explore a wide range of test instruments from recognised names to support everyday electrical work. Find options for inspections, fault-finding, maintenance and regular checks across different environments.
- Kewtech: Provide accessories and equipment for electrical measurements, inspections and routine testing, helping electricians manage installation checks, continuity testing and ongoing system verification on site.
- Megger: Support electrical testing tasks with instruments for general checks, fault-finding and verification, covering a range of inspection needs during installation, commissioning and ongoing maintenance work.
- Super Rod: Offer specialist testing tools designed to help electricians assess protection devices and circuits, assisting with safer diagnostics, system checks and efficient fault investigations in various installations.
- CK Tools: Deliver storage and carry solutions tailored for electrical meters and testers, helping keep essential measurement tools organised, protected and easy to transport between jobs and working locations.
- T.I.S.: Focus on handheld electrical testing gear for identifying live voltages and carrying out basic checks, supporting quick diagnostics, safety confirmations and routine inspections in domestic and commercial environments.
- Wago: Provide connection accessories and test probes that help electricians access terminals and conduct measurements efficiently during inspection, commissioning, troubleshooting and periodic verification tasks across installations.
- MK: Offer electrical testing solutions aimed at installation checks and performance verification, helping contractors measure key parameters and confirm circuits during new projects and regular inspection schedules.
- Hager: Provide metering and monitoring equipment that assists with measuring electrical consumption and system performance, supporting energy management, load assessment and ongoing review of installed electrical systems.
Frequently Asked Questions
What are test instruments used for in electrical work?
Test instruments are used to measure and check electrical values such as voltage, continuity and insulation resistance, helping electricians verify circuits, diagnose faults and carry out inspection and maintenance tasks.
Do I need different test instruments for domestic and commercial installations?
Yes, many electricians use a range of instruments, as commercial and industrial installations can involve different circuit types, higher loads and more complex testing needs than smaller domestic properties.
What is a multifunction tester in electrical testing?
A multifunction tester combines several testing functions in one unit, typically allowing checks such as continuity, insulation resistance, loop impedance and RCD performance during installation and periodic inspection work.
How often should electrical test instruments be checked or calibrated?
Test instruments should be checked regularly according to the manufacturer’s guidance and any relevant procedures, to help maintain confidence in readings used for inspection, testing and certification work.
Can test instruments be used on energised circuits?
Yes, many test instruments are designed for use on live circuits, but users must always follow the manufacturer’s instructions and established safe working practices before carrying out any live testing.
What is the difference between a voltage tester and a multimeter?
A voltage tester is generally used to confirm the presence of voltage, while a multimeter can measure several values such as voltage, current and resistance, depending on the model and features.
Do I need special leads and probes for my test instrument?
Yes, using appropriate leads and probes helps ensure reliable connections and readings. The correct accessories can also make it easier to access terminals and test points safely and efficiently.
Can I use the same test instrument for insulation and continuity testing?
Yes, many instruments offer both insulation and continuity functions. Always check the device’s features and follow the operating instructions for each test type to obtain meaningful, consistent results.
What should I look for when choosing a handheld voltage tester?
Consider the voltage range, ease of use, indication method, and the environments where it will be used. Always review the product information carefully and follow the supplied operating instructions.
How should I store my test instruments when not in use?
Store test instruments in a protective case, away from excessive heat, moisture and dust. Disconnect leads, keep accessories together and follow any storage guidance provided in the product documentation.
Need help with test instruments?
If you need guidance choosing test instruments or have a question about products, our team is happy to help. Call us on 01424 220384 for friendly support and product information.