The present invention relates to a device and a method for controlling the temperature of at least one sample. The device comprises at least the following means: (a) means for accommodating (2) at least one sample; (b) means for heating and/or cooling (4) at least one sample; (c) means for covering (3) at least one sample. These means for covering (3) at least one sample comprise at least one movable contact area (12) and first (30) and second means (31) for fixating said at least one movable contact area (12) in at least one defined direction relative to the sample. Therein said first means (30) for fixating matingly engages with a corresponding second means (31) for fixating.
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