Condensing tumble dryer comprising a method for operating a temperature sensor and

The present invention relates to a condensing type dryer drum (1), the condensing tumble dryer (1) having an article (4) to be dried for a cartridge (2) for the cartridge (2 ) drive motor (28), process air channel (24), the process air fan (27), for heating the process air (11) / cooling system (14,16,18,19,25,30), a temperature sensor (21) and control means (20). Said temperature sensor (21) is an infrared telescope (21) and arranged to measure at least two members (5,14,16,18,19 condensate from the dryer drum (1) to be monitored simultaneously, 24,25,27,28,30) heat radiation. The present invention further relates to a method for operating such a condensation tumble dryer (1).