What do I do if I have a complaint?

We are very sorry that there seems to be a problem with one of our products. In case of a complaint, please write us an email with a short problem description, model number as well as a copy of the purchase receipt (e.g. as a PDF, scan or photo).

Please note that we cannot provide customer service by phone. Also, please refrain from returning your products to us without prior arrangement. If it is necessary to send it in, we will provide you with a free return label.

If you purchased your product directly from us, in our webshop, please send your e-mail to:

In all other cases, please send your email to:

Instruction Manual

Where can I find an instruction manual for my product?

All instruction manuals can be found on our site to read and download. Search by product category to find your product or enter the model number directly:

Warranty Claims

How long can I claim under warranty and what are the conditions?

Detailed information about the warranty conditions can be found here:

Spare Parts

Can I also reorder product-specific wear parts?

No, unfortunately we cannot replace wear parts or offer them for sale. In order to be able to offer our customers as diverse a product selection as possible, our product range is very broad. A stock-keeping of all product-individual spare parts (stand feet, battery compartment covers, display glasses, batteries etc.) is therefore unfortunately neither economically nor logistically feasible. As we would like to continue to offer you high quality products at reasonable prices, we ask for your understanding!
Excluded are of course already at the time of purchase defective products. In such cases, please complain immediately (within 14 days) and directly to the dealer / seller from whom you purchased the product. The product can then be exchanged or refunded in its entirety by the seller.