If equipped with the GPRS option, you can insert a standard-size SIM card into the Logger to facilitate using it with StreamLog; although the exact position of the SIM card varies between different Loggers in principle, the method of installing the SIM Card is the same:
Undo the TORX bolts (normally at the end opposite the USB and SD Card of the Logger).
Locate the SIM Card Slot.
Insert the Standard Size SIM Card into the slot and push it in, making sure that the contacts of the SIM Card face the PCB that the slot is soldered onto and making sure that the cut-off corner of the SIM Card goes in first.
Place the end panel and tighten the TORX bolts again, taking great care not to over-tighten the bolts and strip the tread in the housing.