Jump to content


The FAQ section for Portfolio answers questions about our range of services, as well as our calibration procedures.

Do you only calibrate Testo devices?

We at Testo Industrial Services see ourselves as a manufacturer-independent service provider. This means that we calibrate Test and Measurement equipment from all manufacturers.

Can Testo Industrial Services perform cleanroom measurements and qualifications?

As an experienced provider of GMP compliance services, a particular focus of our services is on the qualification of cleanrooms. Our modular range of services extends from individual measurements to the complete planning and handling of qualifications/re-qualifications and cleanroom projects (new construction or extensions).

For more information, please visit our cleanroom qualification page:

Cleanroom qualification

Which test equipment can you calibrate?

As a full-service provider for metrological services, we cover almost everything in the field of calibration. If we are unable to calibrate a piece of test equipment in our laboratories, we will coordinate the calibration for you. One of our certified and competent cooperation partners will then carry out the calibration. You have only one contact person for all your test equipment, thus saving time and resources. Simply send your request to info@testotis.co.uk. If you have many measuring instruments, we would be happy to provide you with an attached list of test equipment.

Does Testo Industrial Services perform mapping for refrigerators/freezers or warehouses?

As part of the qualification of storage areas, we perform climate mapping, climate distribution studies and summer or winter mapping in freezers and refrigerators, in high-rise warehouses, block warehouses or similar storage areas. You can read more about the qualification of storage areas here:

Transport and storage qualification

Which calibrations can be performed on site (ISO/factory calibration & UKAS accredited calibration)?

Due to our broad service portfolio, TIS UK can carry out on-site calibration according to ISO as well as accredited according to DIN EN ISO/IEC 17025:2017. Calibrations take place in the areas of thermodynamics, mechanics, electrics, length measurement technology and flow on site.

You can find an overview of our on-site services here:

On-site calibration

What is the difference between Testo Industrial Services GmbH and Testo SE & Co. KGaA?

Testo SE & Co. KGaA is a manufacturer of measuring instruments and offers solutions for a wide range of industries. Testo Industrial Services GmbH is a subsidiary of the measuring instrument manufacturer Testo and represents the service area of the group. As one of the leading providers of metrological services, Testo Industrial Services operates independently of manufacturers, which means that we calibrate test equipment from all measuring instrument manufacturers and not just Testo devices. Our range of services includes calibration, test equipment management, qualification, validation and many other GxP services.

You can find out more about the company's history here.