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Seaward PrimeTest 100 PT100 PAT Tester - New 5th Edition

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£358.80 £299.00
In Stock Free UK Delivery* Delivery Options

UK - Mainland

England, Wales and most of Scotland.

Standard Delivery - Typically Next Working Day
If items in stock1

FREE Over £249
£3.99 Under £249

Guaranteed Next Working Day Delivery


Guaranteed Next Working Day Delivery: Pre-Noon


Weekend Delivery: Pre-Noon


UK - Highlands & Islands

Includes Northern Ireland (excludes Gibraltar).

Standard Delivery - Typically 2-3 Working Day
If items in stock1



Calculated at checkout.

Note: Time frames based on orders placed weekdays before 3:00pm. Prices Ex VAT.

1 See delivery page for more details.

Choose a Special Offer

  • Essential Bundle (1,000 Labels & Logbook)
    Essential Bundle (1,000 Labels & Logbook)
  • Essential Bundle (1,000 Labels & Logbook) SKU: (PAT-ESSENTIAL-BUNDLE)
    Essential Bundle (1,000 Labels & Logbook)
  • 110V Construction Bundle (240V to 110V IEC & Plug Leads)
    110V Construction Bundle (240V to 110V IEC & Plug Leads)
  • 110V Construction Bundle (240V to 110V IEC & Plug Leads) SKU: (PAT-CONSTRUCTION-BUNDLE)
    110V Construction Bundle (240V to 110V IEC & Plug Leads)
  • IT Bundle (3 x IEC Adaptors & Socket Tester)
    IT Bundle (3 x IEC Adaptors & Socket Tester)
  • IT Bundle (3 x IEC Adaptors & Socket Tester) SKU: (PAT-IT-BUNDLE)
    IT Bundle (3 x IEC Adaptors & Socket Tester)
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FREE PAT Accessory Bundle
3 Bundle Deals Available...
Free PAT Guide

Free Seaward Practical PAT Testing Guide

Add this Seaward PAT Tester to your basket and automatically get a free Seaward PAT Guide, in addition to any other promotion! T&Cs Apply.

5th Edition

Make your life easier! Use a hand-held, battery-powered Seaward PrimeTest 100 (230V) A PAT Tester to perform quality tests for an affordable price.

The Primetest 100 is compliant with the 5th Edition Code of Practice and has been updated in October 2020 to ensure this, these changes include;

  • 250V insulation Resistance Test and new settings menu where you can choose the default test voltage (you can switch to the non-default test voltage (250V /500v) by holding down the test key)
  • Select pass-fail values for earth continuity (0.1, 0.2, 0.3Ω) from the menu
  • Long lead testing
  • Class 1 equipment with no exposed parts and a Class 2 FE test sequence
  • Pass-fail limit of 5mA for Equivalent Leakage test

The Primetest 100 keeps its previous reputation as a feature-packed manual PAT tester. It is hand-held and battery-powered, giving you great freedom when PAT testing. This PAT tester is easy-to-use and has three operational modes. Simply pushing a button will give you the option of PAT Test mode, Class I and II, IEC Lead Test mode or simply plug into a power socket to automatically test it.

The Seaward PrimeTest 100 PAT Tester has a bright display which shows actual test readings. Therefore you can use the readings to test extension cables and appliances with long leads. This allows you to decide whether the item is a pass or fail.

You can also test 110v appliances with the Seaward PrimeTest 100; you just need to purchase two extra leads, see PASSPTA2 (IEC socket to 110v plug 16amp) and PASSPTA9 (240v UK 13amp plug to 110v socket 16amp).

Key features of the Seaward PrimeTest 100 PAT Tester

  • Easy to use
  • Compact and rugged design
  • Simple push-button test action
  • Test Class I and II equipment including IT and business equipment
  • Extension and IEC lead tests
  • Power socket polarity
  • LCD display giving clear pass/fail indication
  • Accurate and reliable earth continuity testing
  • Mains supply check
  • Earth continuity (200mA)
  • Insulation resistance (250/500V)
  • Alternative/substitute leakage

Seaward PrimeTest 100 PAT Tester suitability

  • Maintenance Staff
  • Second-hand shops
  • Low volume users
  • Bed and breakfasts/small hotels
  • Anyone new to PAT testing

Compatibility with Seaward's PATMobile App

Designed for use with Seaward's PrimeTest PAT Testers, the Seaward PATMobile App (available for free from GooglePlay**) is a manual data entry app capable of recording and organising data and asset records, as well as producing and exporting PDF and CSV reports. Additionally, when used with Seaward’s Test ‘n’ Tag Printer and compatible labels (sold separately), the Seaward PATMobile App can be used to produce labels. For a comprehensive introduction to the Seaward PATMobile App and its features, please see the following video.


Accessing the required features, functions and settings is made quick and easy as a result of the Seaward PATMobile App’s intuitive and fast interface. Moreover, its powerful and quick search and filter allow the user to view required and relevant data efficiently.

In addition to this, the Seaward PATMobile App’s dashboard enables the user to monitor assets and see which appliances have become out-of-date. Other tools included in this app are integrated calculators for risk-assessments and resistance, auto-incrementation of asset IDs, and support for user-customisation: the user can upload a company logo or signature for inclusion in reports. It is also possible to include images of the appliance, captured using the smartphone's/ tablet’s camera, in records and reports.

The Seaward PATMobile App can also be used for the following:

  • Recording and managing data
  • Creating PDF reports
  • Creating CSV reports
  • Exporting CSV or PDF reports via email
  • Scanning 1D and 2D barcodes (using the smartphone’s/ tablet’s camera)
  • Scanning Seward Apollo QR codes (using the smartphone's/ tablet’s camera)

The Seaward PATMobile App is a simple-to-use and powerful manual data entry app with a multitude of features and functions.

** Please note that, currently, the Seaward PATMobile App is ONLY available for Android smartphones/ tablets with an operating system of Android 5.0 or above.

Seaward PrimeTest 100 PAT Tester comes supplied with

  • Seaward PrimeTest 100 PAT Tester
  • Seaward PrimeTest 100 soft carry case
  • Seaward PrimeTest 100 user manual
  • Earth bond test lead
  • 6 batteries
  • 12 month manufacturer warranty

Manufacturer's Calibration / Conformity Certificate NOT included - We recommend adding a new Calibration Certificate to ensure your Multifunction Tester is calibrated and accurate from the date of purchase, not date of manufacture.

Please Note - If you require the certificate in any particular company or individual name please email us the details that you want to appear on the certificate rather than adding a note to your order as it may be missed by our automated system, feel free to contact one of our advisors if you want to discuss any aspect of this service 01642 626140.

Technical Specification


Earth Continuity

  • Test Current           +/- 200mA DC
  • Display Range     0.00ohms - 19.99ohms
  • Pass Value           0.20ohms


Insulation Resistance

  • Test Voltages     500V DC
  • Display Range     0.20Mohms - 19.99Mohms
  • Pass Value     2Mohms Class II


IEC Lead Test

  • Earth Continuity
  • Insulation Resistance
  • Live/Neutral Checks for o/c, s/c and crossed


Equivalent Leakage Class I

  • Test Voltages     40V AC Nominal
  • Display Range     0.10mA - 19.99mA
  • Pass Value     0.75mA


Equivalent Leakage Class II

  • Test Voltages     40V 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 Voltage
  • Neutral to Earth


Weight and Dimensions     800g/11cm (w) x 5.5cm (d) 27cm (l)

Power Source      6 x AA type disposable batteries

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Additional Information
Manufacturer Part Code 344A910
Model Ref PrimeTest 100

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