Reusable temperature data logger for use in warehouses or cold chain applications to monitor the transportation and storage conditions of pharmaceuticals, food and other temperature sensitive products. Recorded measured data can easily be transferred to a PC using the USB interface. When the data logger is stopped, a PDF report is automatically generated, which can be saved or printed for documentation purposes. Its DIN12830 and 21 CFR 11 compliant and conform to the EU regulations for storage and transport of cooled and frozen goods, as well as those of the US Food and Drug Administration (FDA).