PrimeTest 50 PAT Tester

PrimeTest 50

IET 5th Edition Code of Practice Compliant

The PrimeTest 50 portable appliance tester is battery powered and handheld to allow for fast and efficient testing with clear PASS/FAIL indication. A simple range of tests are selected at the push of a button to test earthed equipment, double insulated equipment, mains cords and leads.

- Selectable 250V/500V Insulation test
- Simple push button operation
- Battery operated
- Long battery life
- Can be used with the Seaward PATMobile App

Simple to use push button operation
Select Class 1, Class 2 or Cord Test Sequences
Easy-to-read LCD display
Clear PASS/ FAIL indication
Accurate and reliable earth continuity testing
Features Seaward's zap circuit technology
Handheld and battery powered
Highly portable with long battery life

More about the PrimeTest 50

The PrimeTest 50 is a great choice for those needing one of the most reliable and easy to use PAT testing machines available.

This PAT tester is ideal for those testing smaller quantities of equipment with an emphasis on simplicity and ease of use. Perfect for simple equipment checks or where enhanced visual inspections are being carried out by Staff.

The PrimeTest 50 is capable of testing Class 1, Class 2, Cables and IT equipment, providing clear PASS/FAIL indication on a large LCD display.

Seaward’s unique ‘ZAP’ technology ensures that earth continuity measurements are accurate in situations where other testers struggle to provide reliable measurements, such as measuring through rust, limescale and other surface contamination.

Three test buttons allow the user to select the appropriate test and an internal smart circuit identifies if an appliance or an extension cord is connected.

The PrimeTest 50 also incorporates a mains outlet test and is supplied with all necessary accessories to help organisations perform PAT Testing with a minimum of fuss.

The PrimeTest Series Testers can be used with our free PATMobile App as part of a combined record keeping and reporting solution. The PATMobile App works with the PrimeTest 50 to enable the input and storage of test records alongside barcode scanning, label printing, photo tagging and reporting.

Built in Britain and used by 1,000’s of organisations every day.

View the PrimeTest 50 Overview Video

Compare the PrimeTest Series

Swipe to see full table    
General Features PrimeTest 50 PrimeTest 100 PrimeTest 250+
5th Edition Compliant bullet bullet bullet
On-board memory     999 records
Handheld bullet bullet bullet
Battery/mains operated Battery Battery Battery (requires
mains for PE
current test)
Scanner & printer compatible Printer only
(PATMobile app*)
Printer only
(PATMobile app*)
Printer only (PATMobile app*)    Test n Tag Pro Serial Printer

Electrical test functions PrimeTest 50 PrimeTest 100 PrimeTest 250+
Accurate earth continuity circuit bullet bullet bullet
Mains supply check bullet bullet bullet
IEC lead test bullet bullet bullet
Earth continuity 200mA 200mA 200mA
Insulation resistance 250V/500V 250V/500V 250V/500V
PE conductor current (earth leakage)     230V only
Touch current     230V only
Alternative substitute leakage   bullet bullet
RCD test     bullet
3 phase leakage     Requires adaptor
Data transfer features PrimeTest 50 PrimeTest 100 PrimeTest 250+
USB download     bullet
PC download/upload     Download only
Remote data transfer via mobile device Manual entry
(PATMobile app)
Manual entry
(PATMobile app)
 Manual entry
(PATMobile app)

PrimeTest 50 PAT Testing Kits

The Primetest 50 PATBag Kit

This PAT testing kit includes:

  • PrimeTest 50 PAT Tester
  • Online PAT testing training course with exam
  • Durable, purpose-made PATBag with compartments for all of your PAT accessories and labels
  • 110V adaptor
  • 500 pass + 500 fail labels
  • Seaward Guide to PAT Testing
  • PAT reference look-up card
  • PAT logbook
  • Quick start video guide
  • PAT business builder CD-ROM and booklet

Part number: 345A929

PATMobile Bundle

The PATMobile accessory bundle has been created to give those using manual PAT Testing equipment the ability to create digital results storage, reporting and labelling solutions when used in conjunction with our PATMobile App

  • Test n Tag Pro Bluetooth label printer
  • 4 x Test n Tag label rolls
  • IEC to Cloverleaf adaptor
  • PrimeTest Checkbox
  • Durable, purpose-made PATBag with compartments for all of your PAT accessories and labels
  • Online Guide to PAT Course

PATMobile is compatible with both IOS and Android

Part number: 403A961

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Optional Accessories

Technical Specifications

Earth Continuity
Test Current +/- 200mA DC
PASS/FAIL Threshold 0.2Ω
IEC Lead Test
Tests Performed Earth Continuity
- Live / Neutral Checks for o/c, s/c and crossed
* Insulation Resistance
Weight and Dimensions
Weight and Dimensions 800g/11cm (w) x 5.5cm (d) 27cm (l)
Part number
Part Number 347A910
Insulation Resistance
Test Voltages 250/500V DC
PASS/FAIL Threshold 1MΩ / 2MΩ
Power Socket Test
Input Voltage Range 230V +10%, -15% AC
Indicators Phase to Earth Voltage, Phase to Neutral Voltage, Neutral to Earth
Power Source
6 x AA Type disposable cells 6 x AA Type disposable cells


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