
Calibration
We calibrate flue gas analysers, electrical test equipment and more (price list).
Accredited Service Centre
We are an authorised calibration and repair centre for Fluke, Megger, Anton, Testo and more.
Collection
We can collect your test equipment from your premises if you are a local business to us.








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Contact Us
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Address
PASS Ltd (Calibration Counter)
Potters Lane
Stevenage
Hertfordshire
SG1 2DF
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Opening Times
Mon – Thu: 08:00 – 17:30
Fri: 08:00 – 16:30
Sat – Sun: Closed
Located just off the A1 and M25, our Stevenage, Hertfordshire service centre is ideally situated for customers across Stevenage, Hertfordshire, and North London. We also offer free UK collection services to Stevenage, Luton, Watford, Harlow, Welwyn Garden City, and surrounding areas.
Free weekly Collection & Return using our own fully insured vehicles
Check to see if we cover your postcode
Non-residential addresses only. View our price list
How it Works
Collection & Return
We will arrange a pick-up and drop-off at a convenient time for you.
Drop-off Point & Return
Use a UPS Drop-off Point and we’ll return items to your supplied address via courier.
Return Only
Arrange your own courier collection and we will return your items via courier.
Trade Counter
At Leeds, we can offer a same day service for an additional 25% fee.

About Stevenage Service Centre
Established in Hertfordshire since 1995, we specialise in the servicing, calibration, and repair of gas testing equipment. Since 2025, we have expanded our capabilities to include electrical test equipment and a full range of instrumentation across the company.
Our purpose-built service centre and team of experts, with nearly 40 years of combined industry experience, enable us to deliver reliable services and technical expertise to customers worldwide. Our client base ranges from sole traders and service centres to national organisations and utility companies.
We are an authorised service centre for Anton, Crowcon, GMI, Testo, TPI, Fluke, Megger, Kewtech, and many other leading brands. Committed to safety and compliance, we continually develop our services to meet the demands of evolving industry standards and legislation.
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More Accreditations

ISO 9001:2015
© 2019 PASS (Portable Appliance Safety Services) Ltd. Company No: 4457106. Privacy Policy & Terms of Use.
