Martindale’s HPAT series simplifies Portable Appliance Testing

Compact, lightweight, easy-to-use handheld PAT / EET testers

Effective portable appliance testing requires equipment that delivers dependable results, prioritises operator safety and simplifies the testing process. Martindale Electric’s HPAT range provides a practical solution for electrical contractors and qualified in-house staff, enabling them to assess the safety of various electrical appliances quickly and efficiently using handheld testing devices.


From the entry level HPAT425 through to the top of the range HPAT650, all our handheld PAT testers are designed to carry out safety checks in accordance with the IET Code of Practice. The lightweight HPAT Series combines practical functionality with user-friendly operation. One-button automatic testing streamlines the testing process, while its compact, portable design makes it easy to use wherever inspections are required.


A bright, backlit display ensures clear visibility in a variety of working environments, including areas where lighting is limited. Whether testing beneath a desk, behind a monitor or in other confined spaces, the HPAT Series provides a convenient, dependable solution for everyday portable appliance testing.

HPAT425 handheld entry-level PAT tester

The HPAT425 is Martindale’s entry-level handheld PAT tester, is designed for clear, simple and automatic pass/fail testing of Class 1 & Class II appliances and IEC power leads. The unit is compact and lightweight for maximum portability and features a USB-C charging port for fast on-the-go charging.

Replacing the popular Martindale HPAT400 model, the improved HPAT425 offers everything needed to begin testing straight out of the box.

HPAT550 rechargeable PAT tester

The HPAT550 entry model is an affordable, battery-powered PAT tester. Suitable for Class I and Class II appliances, the tester incorporates large PASS/FAIL indicators and simple connection instructions on the tester. The HPAT550 combines simple PASS/FAIL display with actual test values, it also features a low insulation test voltage, making it suitable for testing surge protected devices. For added convenience, the unit is rechargeable via the integral USB-C port for reduced running costs.
In addition, the HPAT550 includes earth bond probe nulling, and a full colour display.

HPAT650 Advanced PAT Tester

Also available in the range is the HPAT650 which includes both automatic one button testing like the HPAT425 and HPAT550, plus single test selection for diagnostics. The HPAT650 adjustable pass levels for testing appliances with long power cords or long extension leads. In addition, it has memory for storing test results of up to 100 appliances for on-screen recall at a later time.

All HPAT PAT testers from Martindale Electric feature a user friendly interface with clear connection instructions on the screen, making operation simple, every time.


All models come supplied in a practical ‘Test & Go’ carry case, with space for accessories, meaning valuable time is saved as there is no need to unpack and repack the testers when taking measurements.

PAT solutions to support safer working

With an increasing number of prosecutions brought by Health & Safety inspectors for failure to carry out routine inspections of electrical equipment, all these features make the Martindale HPAT series the solution of choice for implementing an efficient and cost-effective portable appliance testing schedule to keep users safe and reduce potential fire hazards.

Martindale Electric offers a comprehensive range of portable appliance testers, voltage testers, proving units and locking off devices to ensure compliance with the Electricity at Work Regulations for the safe maintenance of plant and equipment and the safe operation of electrical appliances.

Learn More about PAT Testing and our full range of PAT testers.