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PrimeTest 100 Portable Appliance Tester

The PrimeTest 100 is one of the UK’s most popular PAT testers, combining built-in test sequences, portability, and ease of use. With one-button operation, you can quickly run pre-programmed tests for Class I appliances, Class II appliances, and IEC leads.

It also performs socket wiring and mains voltage checks when plugged into a power outlet. The large digital display clearly shows test result values and PASS/FAIL indications, helping you work efficiently with minimal setup.

Lightweight and battery-powered, the PrimeTest 100 is designed for fast, reliable testing in any environment. Seaward’s unique ‘ZAP’ technology ensures earth continuity measurements are accurate, even through rust, limescale, or surface contamination.

When paired with the PATMobile App, the PrimeTest 100 enables barcode scanning, digital record keeping, wireless label printing, photo tagging, and mobile reporting — making it an excellent choice for those moving towards a combined digital PAT solution.

Key Features

  • One-Button Operation – Pre-programmed test sequences for Class I, Class II, and leads.

  • Socket & Voltage Checks – Automatically tests wiring configuration and mains voltage.

  • Clear Results – Large display with PASS/FAIL indication and measured values.

  • Battery Powered & Portable – No mains connection needed, ideal for mobile testers.

  • ZAP Technology – Reliable continuity testing through rust or contamination.

  • PATMobile App Integration – Enables digital records, photo tagging, barcode scanning, and mobile reports.

  • Built in Britain – Trusted by 1,000s of organisations daily.

Technical Specifications

Earth Continuity

  • Test Current: ±200mA DC

  • Display Range: 0.00–19.99Ω

  • Pass Values: 0.1Ω / 0.2Ω / 0.3Ω

Insulation Resistance

  • Test Voltages: 250V / 500V DC

  • Display Range: 0.20–19.99MΩ

  • Pass Values: 1MΩ (Class I) / 2MΩ (Class II)

Equivalent Leakage – Class I

  • Test Voltage: 40V, 50Hz AC nominal

  • Display Range: 0.10–9.99mA

  • Pass Values: 3.5 / 5.0mA

Equivalent Leakage – Class II

  • Test Voltage: 40V, 50Hz AC nominal

  • Display Range: 0.10–9.99mA

  • Pass Values: 0.5 / 5.0mA

IEC Lead Test

  • Performs earth continuity, insulation resistance, live/neutral continuity & polarity

Power Socket Test

  • Input Voltage: 230V +10% / -15% AC

  • Indicators: Line-to-earth, line-to-neutral, neutral-to-earth voltages

PrimeTest 100 Kits

PrimeTest 100 PATBag Kit

Includes everything needed for starting out with PAT testing:

  • PrimeTest 100 PAT Tester

  • Online PAT Testing training course with exam

  • Durable PATBag with compartments

  • 110V adaptor

  • 500 pass labels + 500 fail labels

  • Seaward Guide to PAT Testing

  • PAT reference look-up card

  • PAT logbook

  • Quick start video guide

  • PAT business builder CD-ROM & booklet

Part number: 345A925

 

PATMobile Bundle

Transforms manual PAT testing into a digital workflow when used with the free PATMobile App:

  • Test n Tag Pro Bluetooth label printer

  • 4 × Test n Tag label rolls

  • IEC to Cloverleaf adaptor

  • PrimeTest checkbox

  • PATBag carry case

  • Online PAT Guide Course

  • Compatible with iOS & Android

Part number: 403A961

Standard Accessories

  • 0.5m extension adaptor

  • Earth bond lead

  • 6 × AA batteries

  • Carry case

Optional Accessories

  • PATGuard 3 software (400A910)

  • 110V to IEC adaptor (344A050)

  • 230V to 110V adaptor (270A076)

  • 3 Phase adaptors (16A / 32A, Star & Delta)

  • PATCheckbox (227A910)

  • PowerCheck 1557 (369A910)

  • Labels – Pass (91B038), Fail (91B311), Barcode (194A307)

  • Rechargeable batteries & charger (339A950)

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