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Calibration Services by Vaisala Help Keep Your Vaisala Instruments as Accurate as New


Calibration is essential for all measurement instruments. Using Vaisala’s calibration services is a quick and a stress-free way of taking care of regular calibration and it gives you several other benefits as well. We don’t just calibrate your products, we also adjust them, test their functionality as well as clean and replace wearing parts when needed.

You will also get a clear report with “as-is” and “as-left” values and a certificate to guarantee that the accuracy and traceability of your instrument complies to industry recognized standards. Read also Four Reasons to Calibrate Your Instruments at the Manufacturer blog post.


Calibration Care Agreement

Our Calibration Care Agreement includes planned calibrations for multiple years. It is the most economical and convenient way to maintain the accuracy of your Vaisala measurement instrument  year after year.

As a Care customer you will enjoy multiple benefits from lower calibration costs to faster turnaround times:

  • Planned Calibrations for multiple years
  • Transparent pricing without price changes
  • Free shipping to-and-from Vaisala
  • Priority order handling at the Service Center
  • Easy return process from Online portal

Vaisala´s Calibration Services

Standard Calibration

Standard Calibration

Standard calibration performed on Vaisala instruments before they leave the factory. In order to maintain best accuracy for the measurement, the...
Accredited Calibration

Accredited Calibration

Many industries are required by regulatory bodies to comply with strict quality standards. Vaisala offers calibration services accredited according...
Custom Calibration

Custom Calibration

Custom calibration is the correct choice if specific points within your instrument’s measurement range are needed. Calibrating and adjusting your...
Vaisala Calibration Care Agreement

Calibration Care Agreement

The agreement includes planned calibrations for multiple years. It is the most economical and convenient way to maintain the accuracy of your Vaisala...
On-Site Calibration

On-Site Calibration

Calibrating Vaisala Continuous Monitoring Systems (CMS) on site helps to maximize reliability and profitability by minimizing costly equipment...
Vaisala Service Center Repair

Service Center Repair

Our professional repair services help extend the life of your Vaisala equipment. Repairs include fault tracing and replacement of failed components...

Key Features of Vaisala Services

Ensure Long-term Data Accuracy

Even the best high-performance measurement instruments require regular calibration and maintenance to ensure they continue providing the most accurate data possible.

All measurement instruments drift over time – it’s only a question of how much and how quickly. Drift can be caused by dirt and chemicals in the ambient air or simply by temperature changes. Regular calibration protects against incremental sensor drift and verifies that units are operating within the given specifications.

Choosing the right calibration laboratory and service supplier can be as important for lifetime accuracy and reliability as the initial selection of the instrument.

Our high-performance calibration laboratories were established in 1958 and we are continually improving our technology, facilities, and capabilities to provide the high-quality services you expect from Vaisala.

Calibration Services that Meet Your Needs

Since measurement instruments are used in a wide variety of environments, the optimal calibration intervals and methods will differ. They are based on the application, product usage, and your company’s quality system.

Additionally, many industries are required by regulatory bodies to comply with strict quality standards and to provide documentation which demonstrates that measurements are reliable.

Our global service centers provide a wide range of calibration services to meet your specific needs: standard calibration, custom calibration, and accredited calibration services audited by the world’s leading accreditation authorities.

Vaisala Calibration Includes

  • Calibration at Vaisala preselected points or customer selected points within an instrument’s measurement range
  • Wearing parts
  • Instrument adjustment
  • Functionality testing
  • Service report
  • Calibration certificate
  • Traceability to industry recognized standards

Repair Services

Our professional repair services help extend the life of your Vaisala equipment. Repairs include fault tracing and repair or replacement of failed components, as well as final testing or standard calibration to ensure your equipment is functioning according to specifications. Custom point or accredited calibration can also be included for an additional fee.

Vaisala repair service is always performed by an accredited professional. All measurements, spare parts and functional tests are documented and reported, and Vaisala provides a six month guarantee on the work.


Here you can find

  • Application notes
  • Brochures
  • Certificates
  • Calibration Terms and Conditions
  • Premium and Calibration Care Agreements
  • Technical Notes

FAQ: Accredited or Certified?

Answers to the 7 Most Frequently Asked Questions about Accreditation


1. What is laboratory accreditation?

Accreditation is formal third-party recognition by an authoritative body of a laboratory's competence, both to work to specified standards and to carry out specific tasks that are defined in the scope of the accreditation. The laboratory’s management and quality systems are assessed during the accreditation process, as is the laboratory's technical competence to carry out the specific tasks.

The main standard used for accrediting calibration and testing laboratories globally is ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories.

2. What is the difference between accreditation and certification?

Although the terms accreditation and certification are sometimes used interchangeably and both terms address the issue of quality management systems, they are not synonymous. Accreditation is formal third-party recognition by an authoritative body, verifying that a laboratory has an acceptable quality management system in place and can properly perform tasks according to the accreditation scope.

Certification is written assurance by a third party that a product, management system or personnel conforms to specified requirements.

3. Who are the accreditation bodies?

There are many accreditation bodies e.g. NIST, UKAS, FINAS providing accreditation services worldwide. Accreditation bodies are usually either members of multilateral recognition agreements or have mutual recognition arrangements signed by international organizations, such as the International Laboratory Accreditation Cooperation (ILAC), the International Accreditation Forum Inc. (IAF), and the European co-operation for Accreditation (EA). Accredited laboratories may use these arrangements to reduce the need to get accredited in multiple countries and the end user to accept services accredited by any member of these recognized bodies.

4. How is accreditation achieved and maintained?

Accreditation is achieved after an audit of the laboratory’s quality and management systems by an individual or team of assessors. The assessor(s), typically experts in the calibration industry or representatives of national laboratories, also ensure that the laboratory is technically competent to carry out the measurements included in the accreditation scope.

To maintain accreditation, laboratories are periodically re-evaluated by the accreditation body to ensure their continued compliance with requirements, and to check that their standard of operation is being maintained.

5. What is the difference between traceable and accredited calibration?

Traceable means that the result of a measurement can be related to stated references of either national or international standards, through an unbroken chain of comparisons. An accredited calibration service provider is one that has been approved by an accreditation body. During the accreditation process, the laboratory needs to prove the traceability and uncertainty of their measurements to a national or international standard.


6. Who needs accredited calibrations?

Accredited calibration is typically required when formal third-party recognition is expected, for example when instruments are used as reference standards, or to meet various demands from different authorities.

Accreditation provides the customer with an assurance of high-quality service, as the laboratory has been assessed by an external assessor to be technically competent to conduct their tasks. Using accredited calibration reduces the cost and time spent to assure the quality and technical capability of the service provider.

7. Who provides accredited calibration services?

There are accredited laboratories all over the world. Vaisala has four accredited laboratories for specific instrument calibrations that are recognized by all major international accreditation organizations.

Customers all over the world are served from the following locations:

  • Helsinki, Finland (FINAS)
  • Tokyo, Japan (JCSS)
  • Boston, United States (A2LA)
  • Beijing, China (CNAS)