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Truck GPS trackers

Teltonika FMC125

FMC125 is a small professional 4G LTE Cat 1 tracker with 2G fallback, RS232 and RS485 interfaces and Dual SIM. It suits fleets that need external devices such as fuel level sensors.

Request a quoteCall +373 69 130 410

Trucks

  • 4G LTE Cat 1
  • RS232 / RS485
  • Dual SIM
  • Backup battery

Official Teltonika partner · Supplied by Tafi Solutions and connected to Tafi GPS

Key features

  • 4G LTE Cat 1 with fallback to 2G
  • Dual SIM, which can considerably reduce roaming costs
  • RS232 and RS485 interfaces for fuel level sensors and other external devices
  • Impulse input for fuel flow meters
  • 2 digital inputs, 1 digital output, 1 analog input, 1 CAN adapter input and 1-Wire
  • 170 mAh backup battery, Bluetooth 4.0 + LE, 65 x 56.6 x 20.6 mm

Technical specifications

Specifications: official Teltonika datasheet. Updated 2026-09-30.

ParameterValue
NetworkLTE Cat 1, GSM/GPRS; Dual SIM
GNSSGPS, GLONASS, GALILEO, BEIDOU, QZSS, AGPS; 33 channels
Backup battery170 mAh Li-Ion 3.7 V (0.63 Wh)
Input voltage10–30 V DC with overvoltage protection
InterfacesRS232, RS485, 2 digital inputs, 1 digital output, 1 analog input, 1 CAN adapter input, 1-Wire, Micro-USB 2.0, Bluetooth 4.0 + LE
Ingress protectionIP41
Dimensions65 x 56.6 x 20.6 mm (L x W x H)
Weight55 g

Best suited for

Heavy duty and refrigerated transport, international logistics, trailer tracking, taxis and car rental, where fuel monitoring and lower roaming costs matter.

Works with Tafi GPS

Every tracker we supply can be connected to Tafi GPS — live map, trips, geofences, alerts and driver analytics in Romanian, Russian and English — or to TAFI Agent if you want tracking linked to orders, paperwork and invoicing.

Tafi Solutions supplies and configures the FMC125 and connects it to Tafi GPS; ask us to confirm which parameters you will see for your vehicles.

Request a quote for Teltonika FMC125

Tell us how many vehicles you want to track and what you need to see. We will recommend the right Teltonika model and send you an offer.

We receive your request immediately and reply personally. Prefer to talk? Call +373 69 130 410.

Frequently asked questions

What can be connected to the RS232 and RS485 ports of the FMC125?

The RS232 port supports modes such as Log, NMEA, LLS, LCD, RFID HID/MF7, Garmin FMI and TCP ASCII/Binary. RS485 supports Log, NMEA, LLS and TCP ASCII/Binary. Typical use is digital fuel level sensors.

Why does Dual SIM matter?

The FMC125 has two SIM slots. According to Teltonika, Dual SIM considerably reduces roaming costs, which is useful for vehicles that cross borders.

Other Teltonika models

All Teltonika models