Changes

* Before installing the SIM cards, please apply a thin layer of dielectric grease to the SIM card contacts for devices used in environments with '''high-vibration levels'''. This will help avoid SIM cards losing touch with the SIM slot and prevent unexpected failures.

* Before installing the SIM cards, please apply a thin layer of dielectric grease to the SIM card contacts for devices used in environments with '''high-vibration levels'''. This will help avoid SIM cards losing touch with the SIM slot and prevent unexpected failures.

* Industrial Grade SIM cards are recommended for devices requiring a long lifespan used in environments with '''extreme temperatures''', '''corrosive''' or '''extra humid climates''', or hard-to-reach locations.

* Industrial Grade SIM cards are recommended for devices requiring a long lifespan used in environments with '''extreme temperatures''', '''corrosive''' or '''extra humid climates''', or hard-to-reach locations.