An apparatus for washing and drying laundry, or or

The present invention relates to a device (1) for washing and or or for drying laundry, in particular tumble dryer (1), washing machine (1) and respectively or washer-drier (1) with a laundry drum (15) Washing for receiving to and / or drying laundry. The device (1) is characterized by at least a first electrical unit (2) and at least a first electrical sensor element (30) connected to the laundry drum (15) is arranged to rotate therewith, the first electrical unit (2) and the first electrical sensor element (30) are constructed and arranged such that there can be a temperature dependent electrical interaction between them.