FMC920 external fuse

The FMC920 spec says it has an internal 3A, 125V fuse.
The Quick Start Guide says “3 A, 125 V external fuse shall be used.”

Does it really need both?

Hi @creer

Good day, this is our recommendation to avoid any damage in the device and to the vehicle.

Reference: FMC920 First Start - Wiki Knowledge Base | Teltonika GPS (teltonika-gps.com)

Best Regards
Maynard C.

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