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4G LTE Cat 14G LTE Cat 13G/2G FallbackDual SIMRS232/RS485

Teltonika FMC125

Enterprise 4G tracker with dual SIM, RS232/RS485, and 1-Wire — designed for complex fleet operations that demand serial sensor integration alongside high-speed LTE connectivity.

Teltonika FMC125

Technical Specifications

NetworkLTE Cat 1 + 3G + 2G fallback
SIMDual SIM
InterfacesRS232, RS485, 1-Wire, Bluetooth 4.0 LE, Micro-USB
Digital I/O1 DIN, 1 Digital Out, 1 Analog In
GNSSGPS, GLONASS, Galileo, BeiDou — <3 m accuracy
Backup Battery170 mAh
Memory128 MB
Dimensions65 × 56.6 × 20.6 mm

Key Features

✓
Dual SIM with automatic failover — primary + roaming SIM in one device
✓
RS232 / RS485 for fuel sensors, RFID readers, Garmin FMI, tachographs
✓
1-Wire for iButton driver identification and temperature monitoring
✓
4G LTE Cat 1 for real-time streaming, HD video triggers, and fast OTA updates
✓
3G/2G fallback guarantees connectivity even in remote corridors
✓
Driver behaviour analytics with configurable scoring thresholds
✓
Eco-driving reports, geofencing, and scheduled event recording

Ideal Use Cases

Long-haul Cross-border

Long-haul Cross-border

Dual SIM keeps trucks connected switching between Safaricom, Airtel, and MTN roaming.

Cold Chain & Refrigerated

Cold Chain & Refrigerated

1-Wire temperature probes ensure regulatory compliance for pharma and food transport.

Fuel Sensor Fleets

Fuel Sensor Fleets

RS232 or RS485 connects to Technoton or Omnicomm fuel sensors directly.

Industrial Vehicles

Industrial Vehicles

RS485 bus for pressure sensors, weighbridges, and PTO monitoring.