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UNI-T UT527 PAT Tester - 5th Edition Compliant

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5th Edition PAT Tester

New to PAT testing, or just looking for a simple tester that does everything you need? You've just found it - this is the UNI-T UT527, possibly our most popular PAT tester and an absolute essential for those new to the industy, particularly suited for use in charity shops, smaller offices, for use by landlords and anyone else who PAT tests a small amount of appliances.

The UNI-T UT527 is designed completely with simplicity in mind. Testing with this PAT tester is literally as simple as connecting up the supplied leads to the appliance you're testing, then pressing a button on the front. The UT527 will then perform all needed tests and display a PASS/FAIL result on the large-size LCD screen (please note that this tester does not show full test results and will only show PASS/FAIL).

You can use the UT527 to test all appliances. This unit is perfectly suitable for use on both class I and II appliances commonly found in offices etc, can be used safely with IT equipment and can even be used for testing 110V appliances as found on construction sites etc (requires optional 110V adapters). It's also suitable for use with power leads and can - via the use of IEC adapters etc - be used to test cloverleaf and other power leads commonly found on laptop power supplies and similar equipment.

The UT527 performs all basic PAT tests required by the IET Code of Practice and is 5th Edition Compliant, including insulation resistance at 250V; giving more control over testing sensitive equipment or surge protected equipment, earth continuity, socket tests and more.

UNI-T UT527 PAT Tester Key Features

  • Extremely easy to use PAT tester, highly recommended for use by those new to the industry
  • 5th Edition Complaint as Per the Code of Practice
  • PASS/FAIL indication only - the UT527 will let you know if an appliance has passed the tests, but won't show full testing results
  • Does all the basic tests you need, including earth continuity and insulation resistance
  • Suitable for testing both class I and class II appliances, plus associated power leads
  • IT Safe earth continuity test - won't damage your IT equipment
  • Mains socket testing function included
  • Portable design with simple, three-button interface, large LCD screen and mains socket port
  • Can be used to test 110V equipment (requires optional 110V adapters, sold separately)
  • One-touch testing - connect your leads and touch the testing button you need
  • Clearly labelled test buttons - one for class I, one for class II and one for IEC and extension lead
  • Class I Electrical Appliances - includes such things as kettles, toasters, microwaves, fridges etc
  • Class II Electrical Appliances - includes things such as drills, televisions, lamps and other power tools
  • IT Equipment - the UT527 performs a safe, low current earth bond test so it won't damage IT equipment
  • IEC Leads and Extension Leads* - always make sure you test detachable power supplies too during PAT testing
  • 110V and 415V Equipment - easily test 110V-powered appliances or three-phase 415V equipment with appropriate adapters (adaptors sold separately)
  • *NEW for 2021* 250V Insulation Resistance Updated 5th Edition models now include 250V insulation resistance test for testing sensitive and surge-protected equipment
  • *Results subject to length/quality of leads tested.

What's Included?

The UT527 is supplied as standard with:

  • UNI-T UT527 PAT Tester
  • Earth Bond Test Lead
  • Alligator Clip
  • IEC Lead
  • Mains Socket Test Adapter
  • Batteries
  • Instruction Manual
  • Hard Carrying Case

Want Full Testing Results? Consider Upgrading to the UT528 Instead!

Did you know UNI-T also makes another version of the UT527 which will show full testing results, as well as PASS/FAIL indication?

Having full testing records for appliances is highly recommended when PAT testing, allowing you to easily compare results on a yearly basis if you jot them down in a log book or software package.

You can read more about the UT528 here >>

Get Everything You Need for Testing with Our Exclusive UNI-T UT527 PAT Tester Bundle Offers!

With labels, adapters, training DVD and other PAT testing accessories all included as standard, our exclusive offers are great for ensuring you have all you need to PAT test.

We currently have the following bundles available for the UT527:

Items Included    Item Description UNI-T UT527 PAT Tester Essentials Kit (Bundle 1) UNI-T UT527 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!
TestSafe 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!
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) screwdrives 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 UT527 Technical Specifications

Specifications  Range   Best Accuracy 
 Insulation Resistance (Ω) Test voltage 250/500V 
  Class I PASS Value  1MΩ  ±0.1MΩ 
  Class II PASS Value 2MΩ ±0.1MΩ 
  Cord PASS Value 2MΩ ±0.1MΩ 
  Test Current (R=500KΩ): >1mA             
  Short-Circuit Current <3mA
Ground Resistance (Ω) Class I PASS Value 0.2Ω  ±0.03MΩ 
  Cord PASS Value 0.2Ω  ±0.03MΩ 
  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 UT527
Model No UT527

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