Certificates

In the Tonfunk Group, all processes, from development, through production, all the way to after-sales service are structured and monitored by the Technical Supervisory Agency TÜV Rheinland. The Group is certified according to the guidelines of DIN EN ISO 9001 and IATF 16949.

The certification according to ISO 14001 is the proof that environmental protection plays an important role during development and production.