The invention relates to a device (1) for storing an object or a substance, in particular a medication, having a container (2, 20) with a container space for storing the object or the substance and having a monitoring device (5), which comprises a first sensor (6) for detecting measurement data and a processing device (10) for determining a irradiation input and/or heat input and/or the temperature and/or a temperature profile of the object or the substance or of the container space using the detected measurement data, wherein the first sensor is a sensor (6) for detecting electromagnetic radiation, in particular a semiconductor sensor or a thermopile.