A climate chamber for measuring electronic circuits, having a housing that includes an interior space and an opening. The interior space is at least thermally insulated from the surroundings by the housing. Two movable jaws each have an end face. An interior space in a region of an opening is distanced from the surroundings according to the thickness of the jaws, and the jaws each comprise a thermal insulation layer, and each jaw has a front side facing the surroundings and a back side facing the interior space. The two jaws are spaced apart by a clear width being formed between the two end faces, so that the circuits disposed on a carrier can be introduced into the climate chamber and in a second state, the opening for the protection of the interior space is sealed against ambient conditions.