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Seaward Primetest 100 PAT Tester

Seaward Official Distributor
  • Tests Class I & Class II appliances as well as extension leads
  • Provides PASS/FAIL indication plus numeric values
  • Portable design and battery-powered, ideal for use on the move

Free gift

Optional Extras

In stock

Free gift with this product

Seaward PAT Accessory Bundle
Seaward PAT Accessory Bundle 1
Worth £85.00

Includes: 110V adaptor, 500 PASS labels, 200 FAIL labels, 250 Passwrap labels, an IEC cloverleaf adaptor and PAT register book.

Product videos


The Seaward Primetest 100 PAT Tester is a simple and effective appliance tester that can test Class I and Class II appliances and IEC extension leads. It is a battery-powered tester that benefits from a portable, handheld design and it is very straightforward to use.

To carry out a test with the Seaward Primetest 100, all the user needs to do is correctly connect the appliance to the tester and press the appropriate test button. A clear PASS or FAIL indication is provided alongside a numerical test result for earth bond continuity, insulation resistance and leakage current. The numerical data enables accurate testing of longer extension leads which may be allocated a false FAIL result.

In order to best use the Seaward Primetest 100, the user can download the Seaward PATMobile app, available for free for Android and iOS devices. By entering results manually, the user can keep a portable, digital database of test results. Results can also be exported in HTML format to a PC and the user can even add photographs taken with their device’s camera.

The Seaward Primetest 100 is suitable for safety checking on office appliances and IT equipment as well as domestic appliances. It is an ideal beginner’s PAT tester thanks to its easy operability and portable design.

Key Features

  • Suitable for Class I, Class II and IEC extension leads
  • PASS/FAIL indication alongside real test result
  • Portable, battery-powered design
  • A great entry-level PAT Tester


Primetest 50 Primetest 100 Primetest 250 Primetest 250 Plus
Earth Continuity Test
Insulation Test (250V)
Insulation Test (500V)
Polarity Test
Leakage Current Test
Touch Current Test
Protective Conductor Current Test
RCD Trip Time Test
PASS/FAIL Indication
Numeric Reading Values
Extension Lead Test
Socket Test
Three-Phase Testing
Auto Test Sequences
Internal Memory (999 results)
Compatible with Seaward TNT Pro Printer


Earth Continuity

  • Test Current: +/- 200mA DC
  • Display Range: 0.00ohms – 19.99ohms
  • Pass Value: 0.2ohms

Insulation Range

  • Test Voltages: 500V DC
  • Display Range: 0.20Mohms – 19.99Mohms
  • Pass Value: 2Mohms

IEC Lead Test

  • Tests Performed: Earth Continuity, Insulation Resistance, Live, Neutral Continuity and Polarity

Equivalent Leakage Class I

  • Test Voltage: 40V, 50Hz AC Nominal
  • Display Range: 0.10mA – 19.99 mA
  • Pass Value: 0.75mA

Equivalent Leakage Class II

  • Test Voltage: 40V, 50Hz AC Nominal
  • Display Range: 0.10mA – 19.99mA
  • Pass Value: 0.25mA

Power Socket Test

  • Input Voltage Range: 230V +10% – 15% AC
  • Indicators: Phase to Earth Voltage, Phase to Neutral, Neutral to Earth


  • 260 x 100 x 55mm


  • 800g

Supplied Accessories

The Seaward Primetest 100 comes with:

  • 230V Extension Lead Adaptor
  • Test lead with crocodile clip
  • Instruction Manual
  • 12 Month Warranty
  • 6 x AA Batteries
  • Carry Case