Contact our support team
Do you have questions about your product or applications? Does your device require new firmware? Or does it not work as it is supposed to? Then contact our support team - send an email, call us or use our contact form.
Take a few minutes so that we can support you as efficiently as possible:
- Tell us the name of the product you have questions about
- Tell us the serial number of said product
- Give a short description of the issue
Even the peripherals connected to the device can be important for answering your question.
We are always here for you!
Your support request
Not all technical issues can be solved over phone. In such cases, please return the product after having contacted our staff.
Please use the RMA Form to ensure that we can process your request as fast as possible.
New contact details
Guntermann & Drunck GmbH Systementwicklung
Obere Leimbach 9
57074 Siegen - Germany
Phone: +49 271 23872-0
Fax: +49 271 23872-120
You can contact us
Mondays to Thursdays:
from 06:00 a.m. to 6:30 p.m. (CET)
from 06:00 a.m. to 5:00 p.m. (CET)
Send an email to
or free of charge via phone
00800 5509 6000*
This service number cannot be reached from some regions or service providers.
In that case, you can still call us on +49 271 23872-488