Call us on: 01392 308110

PAT Tester Calibration

Annual PAT Tester Calibration



(£77.40 inc tax)

You must add the Serial Number of your machine, or your invoice number so that we can allocate payment

Check to confirm items packed ready for next day collection. Leave unchecked if you want us to contact you about when to collect

Collections Mon thru Friday only. Please select preferred day from drop down box. You can add any special instructions in the comments field when you check out.

In stock

We can Calibrate the PB500, PAC500 SP, PAC500 XP, Seaward Primetest 100, Seaward Primetest 50, Ethos 9120, Ethos 9125 Machines. 

You can order online and pre pay here (see notes below if you are in the Highlands or not UK Mainland)

You can request a calibration by clicking here: Calibration Online Order Form

Call us on 01392 364933


Fax 01392 364695

If you are located in the Scottish Highlands or outside of the UK Mainland - Please send us your PAT Tester by your preferred method and we will contact you for payment as we are unable to arrange collection from these areas. Please see map below. 


When purchasing PAT Tester calibration, please ensure that you leave your contact telephone number when paying for the calibration in case we need to contact you about the collection of your PAT Tester by our courier.

Please ensure that the PAT Tester is wrapped securely and placed in a sturdy box, clearly addressed to us at:

Parker Bell

2 Newbery Commercial Centre

Exeter Airport Business Park,

Clyst Honiton



You should still have a pre-labelled cardboard box & courier bag with your machine from your previous calibration or purchase. If you no longer have these, please wrap in a any carddboard box and wrap in a plastic bag, and clearly address it to us at the address above. We are no longer able to send out packaging and encourage you to recycle wherever possible.

Zone 2 - We will collect

Zone 4,5 & 8 and the Isle of Wight - please send your machine to us

Map of where we collect  


Many thanks for the credit card receipt and for the swift return of our tester.

The IET Code of Practice for In-service Inspections and Testing of Electrical Equipment (4th Edition) states that "The accuracy of a test instrument be verified annually or in accrodance with the manufacturer's instructions." 

"Such machine testing should be carried out by a formal calibration house, and the testing of the test leads should be assessed at the time of calibration."