Head of Technical Service, Frederik Riedel, with the Pyranometer KNX PYHead of Technical Service, Frederik Riedel, with the Pyranometer KNX PY

Is your photovoltaic system working efficiently?

News of 23 November 2023

Find out with a pyranometer!

Photovoltaic systems are becoming increasingly common on the roofs of new and existing buildings. Do you have one too? Great!

But do you know whether your system is really delivering the power it is supposed to? 

This is where a small but important helper comes to your aid: the pyranometer. Find out exactly what this smart device can do and how it can be used in smart buildings with KNX installations on our topic page.

To our pyranometer page
Elsner Elektronik KNX PY pyranometer on the roof surrounded by solar panelsElsner Elektronik KNX PY pyranometer on the roof surrounded by solar panels

Legal guarantee

Harmonised EU legal guarantee notice

Minimum two-year legal guarantee protection for goods sold in the European Union.

Consumers can claim their rights under the legal guarantee of conformity, for example if goods:

  • do not match the description;
  • do not function as intended.

Sellers are liable for any lack of conformity which existed when the goods were delivered, and which becomes apparent within the legal guarantee period. Sellers in such a situation are required to offer:

  • free repair or free replacement;
  • in some cases, a price reduction or full reimbursement.

Some countries have a longer legal guarantee period. For second-hand goods, a shorter period may apply, but not less than one year.

What to do if you receive non-conforming goods:

  1. Contact the seller as soon as possible to report the issue;
  2. Provide proof of purchase, such as a receipt, invoice, or bank statement.

Sellers and producers may also offer commercial guarantees, which apply independently from the legal guarantee. For example, you may see this GARAN label representing a commercial guarantee of durability offered by the producer at no additional cost and covering the entire good.

For more information on your rights in a specific country, visit the page below or ask the seller. https://europa.eu/youreurope/guarantees