An NMR measuring configuration has a temperature control device for a sample vial (1). The temperature control device has a temperature sensor with supply wires which are both surrounded by a sensor tube (15). The sensor tube (15) is connected to a measurement space via a sensor flow inlet (26) in such a way that a partial flow of a temperature-control fluid flows as a temperature-control flow (16) into a free space (17) between the temperature sensor and the inner wall of the sensor tube along the supply wires and flows out of the sensor tube via a sensor flow outlet (18) at the opposite end of the sensor tube. This minimizes both the temperature penetration factor and the difference between the sensor and sample temperatures (ΔTp).