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About PASS Ltd

Established Since 2001

PASS Ltd is a UK-based test equipment, calibration and training provider that has been trading since 2001. We have offices based in Watford (London) and Stockton-On-Tees in the North East of England, and we are a fully accredited calibration provider, with an onsite, UKAS-accredited calibration laboratory. With over a decade of experience in calibration, repair and verification, you know you can trust PASS as your calibration supplier of choice.

Repair Laboratory

Official Service Centre

Pass Ltd is the official service centre for many leading brands including Anton, Crowcon, GE Druck, Kern, Megger, Metrel, Seaward and TPI.

Calibration Laboratory 2

Experienced Calibration Technicians

Our team of technicians is comprised of individuals with a variety of calibration specialisms, many of whom have years of experience in the industry.

Calibration Laboratory 1

UKAS Approved Laboratories

Our calibration laboratory has been independently assessed and accredited by UKAS in compliance with the international standard ISO/IEC 17025:2017.

Electrical Calibration

Huge Calibration Scope

We can calibrate test equipment ranging from clamp meters and multimeters to barometers, vacuum gauges, anemometers and digital thermometers to various tools and more. 

Pressure Calibration

Trusted by Companies Big and Small

Both small organisations and contractors, as well as big names, such as the NHS, Argos, Mitie, Bupa and Npower, have trusted us with the calibration of their equipment.

Calibration Technician

Quick and Efficient Service

Many testers are subject to our ‘3-day-turnaround’ service. We will endeavour to dispatch your tester, fully calibrated, within 3 working days of receipt.

Gauge Onsite

UK Wide Onsite Calibration Service

To help minimise downtime and accommodate for cumbersome equipment, we offer onsite calibrations of selected test apparatus.

Admin Staff

First Class Customer Service

We endeavour to keep you informed at every stage of your calibration or repair procedure. If you should have any questions, please do not hesitate to contact us via phone or email.


UKAS 17025 Approved

PASS Ltd is a UKAS accredited calibration laboratory for those activities listed on the UKAS Schedule of Accreditation, found by clicking the button below.

UKAS Calibration

More Accreditations

BAB ISO9001:2015
ISO 9001:2015

Over 10,000 Instruments, Test Meters & Tools Available

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