DEVICE FOR THE READING OUT OF A PLANE TEST REAGENT BEARING ELEMENT

The present invention provides a device for the evaluation of a flat test carrier for the analytical determination of components of body fluids, said device having a tempering device and a regulating unit, the tempering device including a heating and measurement unit which can be pressed flatly against the test carrier in the region of its reference surface utilized for the evaluation and having a heating surface, wherein the heating and measurement unit has a heating surface which can be homogeneously heated with at least one resistance heating element, at least one resistance heating element is associated at least partly in close proximity to the heating surface, at least one part, serving as temperature measurement section, of the part of the resistance heating element arranged in the neighborhood of the heating surface consisting of a material with a temperature-dependent electrical resistance and the electrical resistance of the temperature measurement section is used for the regulation of the temperature of the heating and measurement unit by means of the regulating unit so that a part of the heating element simultaneously serves as temperature measurement element.