Choose which identifier you will enter for the unit you are adding. If there are multiple identifiers on the unit label, the Hardware Key (HwKey) takes precedence.
The Hardware Key (HwKey) contains 16 characters consisting of numbers and letters a-f.
IMEI is a 15 digit number.
MAC address is a string composed of six pairs of numbers and letters, each of which can be separated by a colon or a comma. Shape: XX:XX:XX:XX:XX:X or XX-XX-XX-XX-XX-XX or XXXXXXXXXXXX.