Contact ALNOR at:
1-800-424-7427
or +1 651-490-2811

Service and Calibration

Welcome to Alnor’s After Sales Support Group. We are committed to providing you with the highest quality service available. Each Alnor instrument sold is calibrated using standards of accuracy that are traceable to the National Institute of Standards & Technology (NIST) within the limits of the institute's calibration service.

To maintain the integrity of your Alnor instrument, we suggest that you have it calibrated annually. This will insure the accuracy of your measurements and guarantee compliance with industry standards.

Our calibration service includes an NIST traceable certificate with "as found" and "as left" data. Please contact Alnor for current service times.

We operate two service centers. One is for the United States and all other non-European countries. The other is for European countries only.

In order to meet your requirements, we would like to offer you several avenues to contact Alnor in order to return your product for service.

Online Return Material Authorization (RMA) Form

We have an on-line automatic Return Material Authorization process. Simply follow the instructions on the website and you will be provided an RMA number immediately after filling out the appropriate online forms.
Download a PDF Return Material Authorization (RMA) Form (PDF file - 61K)

Download the RMA form, print it, and fill it out. Then fax the form to us at 651-490-2874 and we will provide you an RMA number.
Instructions on filling out Alnor RMA Form
(PDF file - 256K)
Contact Us

Call us at 1-800-424-7427 to speak with someone in the After Sales Support Group. When calling outside the United States, call +1 651-490-2811.



Service Contact Information

If you live in the United States or other non-European country, please contact:

  • For questions on order or RMA status:
    Email: rma@tsi.com (Please be sure to include your RMA#)

  • For technical questions:

TSI Incorporated
Alnor Products
500 Cardigan Road
Shoreview, MN
55126-3996
U.S.A.
Telephone: +1 651-490-2811
Toll Free: 1-800-424-7427
Fax: +1 651-490-2874
Email: customerservice@alnor.com
Web: www.alnor.com

Service Information for Thermocouples, Pyrometers, and Dewpointer ONLY


If you live in a European country, please contact:

TSI Instruments Ltd.
Stirling Road
High Wycombe, Buckinghamshire
HP12 3RT
United Kingdom
Telephone: +44 (0) 149 4 459200
Fax: +44 (0) 149 4 459700
Email: tsiuk@tsi.com
Web: www.tsiinc.co.uk

Service Information for Thermocouples, Pyrometers, and Dewpointer ONLY



  ©2007 TSI Incorporated. All rights reserved.