The MSR145 mini data logger from MSR Electronics can record and store over two million measurement parameters as standard. Now the data logger is available with a removable microSD card (4GB) that increases the storage capacity of the logger to 1 billion measurement parameters. The microSD card can be changed during on-going measurements, representing a benefit when undertaking long-term measurements. This allows the user to evaluate the saved data at any time, wherever and whenever it may be necessary. Applications of the device include monitoring the transportation of sensitive goods, climate monitoring in building services engineering or for documenting process workflows in industrial applications.