Martindale HPAT425 PAT Tester

SKU: MARTHPAT425
  • Simple one-button automatic PAT testing for Class I, Class II and IEC leads
  • 250V and 500V insulation testing for standard and surge-protected equipment
  • Compact, USB-C rechargeable design for portable day-to-day PAT testing
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Martindale HPAT425 PAT Tester

The Martindale HPAT425 PAT Tester is a compact handheld PAT tester designed for testing all types of portable appliances with simple one-button automatic testing. Martindale positions it for automatic pass/fail testing of Class I and Class II appliances as well as IEC power leads, making it a practical choice for users who want straightforward PAT testing in a portable format.

A key advantage of the HPAT425 is its ease of use. The unit is small and lightweight for maximum portability, features a large, high-contrast greyscale display for testing in different light conditions, and charges via a USB-C port for convenient on-the-go charging. It also replaces the earlier HPAT400 model in the Martindale range.

The HPAT425 is also well suited to modern appliance testing requirements. It features both 500V and 250V insulation test options, which Martindale highlights as useful for surge-protected devices, along with an IT safe 200mA earth bond test. A range of optional adaptors is also available for testing 110V appliances and equipment fitted with 3-phase plugs, giving the tester added flexibility for broader PAT work.

Martindale part number: MARHPAT425

Key Features

  • Compact handheld PAT tester for testing portable appliances
  • One-button automatic testing for quick operation
  • Automatic Class I, Class II and IEC power lead tests
  • Clear PASS / FAIL indication on a high-quality greyscale display
  • 250V / 500V selectable insulation testing
  • IT safe 200mA earth bond test
  • USB-C rechargeable with fast charge support and power saving mode
  • Optional adaptors available for 110V appliances and 3-phase plug equipment
  • 2-year warranty

Martindale HPAT425 vs HPAT550 vs HPAT650

  HPAT425 HPAT550 HPAT650
Class I / Class II test
PASS/FAIL indication
Test values displayed -
200mA Earth continuity test current
Insulation Test Voltage 250V & 500V
Lead Test
Reachargeable (via USB-C)
Sequenced test mode
Single test execution mode - -
Memory (100 results) - -
Selectable limits - -
Substitute leakage test - -

What's In The Box?

  • HPAT425 PAT Tester
  • TL67 Earth Bond Probe
  • EX322 IEC Adaptor Lead
  • TC57 Carry Case
  • USB-A to USB-C Cable
  • Instruction Manual
  • Verification Certificate
Specification

Earth Continuity

  • Test Current – 200mA
  • DC Range – 0-19.99Ω
  • Accuracy - ± (5% rdg + 2 dgt)
  • Fixed Pass Limits - ≤ 0.10Ω/≤ 0.30Ω/≤ 0.50Ω

Earth Continuity

  • Test Voltage – 250V/500V
  • DC Selectable Test Current – 1mA
  • Warranty – 2 Years

For further specifications, please view the attached datasheet.

Label Type Size Download
pdf Martindale HPAT Series Datasheet pdf 690.7 KB Download

Please see our terms and conditions for full details of TM Care & Protect.

Everything you’re likely to require for the next 3 or 5 years:

✅ Annual calibrations included
No further calibration costs for either 3 or 5 years

✅ Free collection and return for annual calibration
No hidden postage costs when it’s time for calibration

✅ ‘Zero-Downtime’ for the life of your care plan
Free loan equipment should your purchase ever need sending away for repair

✅ Anti-theft protection 
Each care plan includes a SmartTrace Forensic Marking kit that acts as a deterrent for your test equipment and other tools

✅ Instrument cleaning kit
Cleaning kit included with each TM Care & Protect plan

Our hope is that TM Care & Protect will bolster our commitment to support you throughout your journey with us, providing you peace of mind from the hassles of annual servicing, potential tool theft and loss of earnings.

Ensures complete reliability, minimised downtime and peace of mind. TM Care & Protect packages include:

✅ Annual Calibration
No further calibration costs for up to 5 years.

✅ Zero Unplanned Downtime
In case of any unforeseen repairs, we provide FREE loan instruments so you can continue working.

✅ Theft Deterrent Kit
Each care plan includes a SmartTrace forensic marking kit: The UK's most powerful theft deterrent. Use on your test equipment, van and tools.

✅ No Shipping Cost
Includes collection and return deliveries when it's time for calibration.

✅ Instrument Cleaning Kit
Avoid preventable issues by keeping your test equipment clean.

Our hope is that TM Care & Protect will bolster our commitment to support you throughout your journey with us, providing you peace of mind from the hassles of annual servicing, potential tool theft and loss of earnings.

Please see our terms and conditions for full details of TM Care & Protect.