HPAT425, HPAT550 & HPAT650

Explore our series of hand-held PAT testers

Durable, reliable, and easy-to-use

With one-button automatic testing, the small, lightweight design gives ultimate portability. All models feature a bright, high-quality display for user-friendly operation and can be charged via the integral USB-C charging port.

New HPAT425 - our entry-level handheld PAT

  • Compact, portable design
  • High-quality greyscale display
  • Clear and simple PASS / FAIL indication
  • Automatic testing Class I, Class II & IEC power lead tests
  • IT safe 200mA earth bond test
  • Selectable 250V or 500V insulation test
  • USB-C rechargeable, fast charge support, and power saving mode
  • The HPAT425 replaces the HPAT400.
Discover the HPAT425

HPAT550 – rechargeable PAT tester

Additional features

  • PASS / FAIL indication with measured values
  • High-quality colour display with optional help screens
  • Earth bond probe nulling
View the HPAT550

Premium features of the HPAT650

  • Memory storage with on-screen recall
  • Adjustable test limits for long mains leads
  • Single and sequenced test execution mode
  • Substitute leakage test at reduced voltage for checking earth leakage
View the HPAT650

According to the Health and Safety Executive, 25% of all reportable electrical accidents involve portable appliances

From these figures, it is clear that a large number of incidents and injuries could be prevented with proper electrical checks, inspections and safety tests.

Code of practice

In accordance with the Electricity at Work Regulations (1989), any electrical equipment that has the potential to cause injury must be maintained in a safe condition.

PAT testing is an expected part of every employer’s safety environment. There are a number of things to consider when deciding on the frequency of PAT testing. These are covered in the 5th Edition of the IET Code of Practice risk assessment. There are 8 factors you should take into account to determine the test interval, which should be chosen, so far as reasonably practicable, to prevent danger.

Find out more

Discover our full range of PAT Testing Solutions

The Martindale HPAT series of Portable Appliance Testers are easy to use, battery-powered, hand-held, lightweight and exceptionally portable.

The range also includes the EPAT series portable appliance testers for 110V and 240V appliances, which are ideal for workshop appliance testing.

View full PAT range

Formal Visual Inspection Checklist

Formalise your PAT/EET formal visual inspection using this guideline checklist to help ensure nothing is overlooked

Access your free checklist

Test your knowledge with our PAT testing quiz

Think you’re a PAT testing buff? Test your knowledge with our PAT testing quiz – it’s 20 questions, multiple choice – good luck!

Learn more about PAT Quiz

PAT Training

We offer a comprehensive one-day course in accordance with the IET Code of Practice 5th Edition, which teaches the theory and practical aspects of testing portable appliances safely.

Find out more

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