You can find the serial number (S/N) of your i.safe MOBILE product here:
On the product itself:
Each product has a label on which the serial number (S/N) is printed. The label is located on the back of the product. If the product has a replaceable battery, the label is located under the battery.
On the product's delivery packaging:
On one side of the packaging there is a label with several barcodes. The serial number (S/N) is printed underneath.