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UNI-T UT528 PAT Tester

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£322.80 £269.00
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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3 Bundle Deals Available...

With three buttons on the front, a large-size LCD screen and a robust, easy to port casing, the UT528 makes PAT testing as simple as possible. It's a perfect PAT testing machine for absolutely anyone involved with PAT testing; no matter whether you're a complete beginner only starting your training or a time-served PAT technician, the UT528 will deliver the results you need to quickly determine the safety of an appliance. This makes it an ideal product for use in small businesses or schools and other academic institutes.

Identical in appearance to its sister product, the UNI-T UT527, the UT528 is capable of performing more testing procedures than the other model and comes with the ability to display full testing values as well as whether an appliance has passed or failed a testing procedure (the UT527 only gives indication of pass/failure status). This tester also comes with an exclusive leakage current testing mode which is not included on the UT527.

Testing with the UT528 is incredibly simple - to aid new users with utilising the tester UNI-T have made sure that all testing procedures are tied to three specific buttons on the front of the tester. This means testing requires the user to make a connection to an appliance, press the button and the tester will do the rest! Results are shown on the large LCD screen which is built into the front of the tester.

This tester is fully suitable for use on IT equipment, tests class I and class II appliances and can also be used to test cables. All necessary PAT testing procedures, including insulation resistance and earth continuity, can be performed by pushing one of the three buttons on the front of the tester.

Key Features

  • Simple operation - just three buttons!
  • Large size LCD screen
  • Shows PASS/FAIL and full testing values
  • Insulation resistance and earth continuity measurements
  • Leakage testing
  • Auto power off when left idle
  • Portable instrument ideal for use in larger environments such as offices

What's Included?

  • UNI-T UT528 PAT Tester
  • Batteries
  • Test Lead
  • Alligator Clip
  • Hard Carrying Case
  • Instruction Manual
  • IEC Lead

UNI-T UT528 PAT Testing Kits

When PAT testing, you'll need accessories such as labels and adaptors on a daily basis. Our exclusive kit packages come with a UNI-T UT528 as well as a selection of essential accessories for use with the tester for a vastly reduced price compared to buying all of this equipment separately.

So why not take a look at our kit options below?

Item Description  UNI-T UT528 PAT Tester Essentials Kit (Bundle 1)UNI-T UT528 PAT Tester Professional Kit (Bundle 2)

Deluxe Carrying Case

Keep all of your equipment safe and in one place with this large-size carrying case!

(appearance of case may vary depending on current stock)

Socket Tester

Need to check if your sockets are working right? Just plug this in to a standard UK plug socket and if there's a problem, the socket tester will let you know about it!

(socket tester may vary depending on current stock)

PAT Testing Training DVD +
Online Exam & Certificate for 1 Person

Not yet trained as a PAT tester? With our training DVD, you can train yourself from the comfort of your own home or workplace! The DVD includes access to our online examination for one person (you can also purchase additional exams for other team members, if needed).

The PASS Handbook of Portable Appliance Testing

Everything you need to know about PAT testing is outlined in this comprehensive book. Inside, you'll find useful information, colour-coded sections, photographic examples and much more to help you PAT test on a daily basis.

PASS PAT Testing Logbook

Keep a record of all of your testing with our logbook. The book includes carbon-copied records, allowing you to keep one for yourself and give the other to customers or keep for a reference.

Microwave Leakage Detector

When PAT testing, it's common practice to check microwaves are also not emitting high levels of radiation. With our microwave leakage detector you'll be able to do this testing with ease.

PASSPTA21 - IEC (C13 Female)
to Cloverleaf (C6 Male) PAT Adaptor

You'll need this adaptor to connect your PAT tester to laptop/PC power leads and other similar equipment which has a cloverleaf-shaped connector.

PASSPTA29 - IEC Plug (C14)
to Cloverleaf (C5) PAT Adaptor

This adaptor is used to connect to laptop power supplies, portable projectors and other similar equipment.

PASSPTA28 - IEC Plug (C14)
to Fig 8 (C7) Pat Adaptor

You'll find several appliances such as game consoles, laptop power supplies, audio/visual equipment and more use this type of connector - with this adaptor, you can connect them up to your PAT tester.

CK Tools AV05050 5 Piece Insulated Screwdriver Kit

A handy set of insulated screwdrivers (suitable for live working to 1000V) suitable for a wide variety of applications.
Includes 2 x PZ (1 x 80 and 2 x 100mm) + 3 x slotted (3 x 75, 4 x 100 and 5.5 x 125mm) screwdrivers in a carrying case.

WM1 - 500 x Passed PAT Testing Labels

You'll need these every time an appliance passes a test - just tear one off, fill in the fields (appliance ID, your name, test date and next test due date) and stick on the appliance when done.

WM6500 - 500 x Circular Passed PAT Testing Labels

These circular-shaped PAT labels are great for plug tops and any other appliance. The labels also include space for ticking the month/year the next test is due.

WM12 250 - 250 x Cable Wrap Labels

These passed labels wrap around a wire/cable from an appliance and are recommended for use with power supplies or on appliances where you can't stick a label. They also include space for writing your appliance ID, name, test date and next test date.

WM7 250 - 250 x Failed PAT Testing Labels

You won't need these as often as your passed labels, but you'll need to apply one of these whenever an appliance fails a test. If it does fail, the item should be taken out of service for repair or replacement

SimplyPats Manual PAT Testing Software

Keep a database of your PAT testing information on your PC and print reports with SimplyPats Manual software. Please note that this software is manual entry; you cannot download directly from the PAT tester and you will need to type in records by hand.


UNI-T UT528 Technical Specifications

Specifications  Range   Best Accuracy 
 Insulation Resistance (Ω)
Test voltage 500V 
  Class I PASS Value  1MΩ  ±0.1MΩ 

Class II PASS Value
  Cord PASS Value 2MΩ
  Test Current (R=500KΩ): >1mA             

  Short-Circuit Current <3mA
Ground Resistance (Ω)
Class I PASS Value 0.2Ω 
  Cord PASS Value 0.2Ω 
  Test Current >200mA (R<2Ω) 

  Measuring Voltages (DC)  5V
 Cord Test Correct Wiring  
 Cord Fault


Open Circuit, Short Circuit,Reverse Polarity       

 X Cord Fault
 Out With Testing Test Voltage AC220V ±10%
   Normal Show"LN ✔
, LE ✔
, NE ✔
   Off Ground Show"LN X;
, LE ✔
 , NE X"
   Out Zero Line Show"LN ✔
, LE X , NE X"
Display Count     1999
Auto Power Off      ✔
Low Battery Indication      ✔


Power 1.5V Batteries (LR14) x6
LCD Size 136mm x 47mm
Product Colour Red and Grey
Product Net Weight 970g
Product Size 210mm x178mm x 90mm
Standard Accessories Batteries, Test Cord, Alligator Clip
Standard Individual Packing Gift Box, English Manual, Tool Box
Standard Quantity Per Carton 4 PCs
Standard Carton Measurement              510mm x 330mm x 330mm (0.056cbm Per Standard Carton)
Standard Carton Gross Weight 11Kg
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Additional Information
Manufacturer Part Code UT528
Model No UT528

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