Your trucks are out past the range where a phone app stops making sense. You need to know where they are, what the engine is doing, and whether that fuel meter is telling the truth — even when the network drops to 2G.
The FMC125 handles all of it. LTE Cat 1 data with 3G and 2G fallback keeps the connection alive on regional runs. Internal GNSS gives you a fix before your drivers hit the first bend. RS485 and RS232 serial ports let you plug in fuel sensors, tachographs, or whatever legacy gear is already bolted to the cab.
The backup battery means if someone yanks the power lead at 6am, the tracker keeps reporting for a window long enough to matter.
No external antenna kit. No separate CAN box. One unit, wired in, done
| brand | Teltonika |
| model | FMC125 |
| category | Electronics & Components |
| subcategory | Automation & Security |
| connectivity | LTE Cat 1, 3G (UMTS), 2G (GSM) |
| positioning | Internal GNSS |
| serial_interfaces | RS485, RS232 |
| backup_battery | 1 |
| platform | Teltonika FMB |