24. November 2021 Teltonika

Teltonika FMB641 is an updated version of the currently most popular GNSS / GSM terminal for professional applications FMB640. Compared to the FMB640, the FMB641 has a new processor that improves the computing power of the device. Hence, it can be tailored for more specific use cases.

Switchable CAN terminators enable the device to be used in a CAN network with numerous nodes. Finally, the device can be powered via USB, which makes the configuration process easier. All functions supported by the FMB640 are also supported by the FMB641 to increase the efficiency of your fleet with functions such as FMS CAN data (J1939), fuel CAN data (J1708), tachograph live data (K-Line ), Remote tachograph file download, support for various third party RS232 or RS485 devices, and dual SIM or eSIM compatibility. The terminal is suitable for applications such as international logistics, refrigerated transport, agriculture, construction and mining, security and emergency services and much more.

Technical data FMB641




  • Receiver: 33/99 acquisition channels
  • Tracking sensitivity: -165 dBM
  • Position accuracy:< 2.5 CEP
  • Speed Accuracy:< 0.1 m / s (within +/- 15% error)
  • Hot start:< 1 s
  • Warm start:< 25 s
  • Cold start:< 35 s


  • Technology: GSM / GPRS
  • 2G: Quad-band 850/900/1800/1900 MHz
  • GPRS: Class B GPRS mobile station
  • Data transmission: GPRS multi-slot class 12 (up to 240 kbps)
  • Data support: SMS (text / data)

Power supply

  • Input voltage range: 8 – 32 V DC with overvoltage protection (pulse 5a and 5b) and reverse polarity protection
  • Internal backup battery: 550 mAh Ni-Mh, 8.4 V battery

Find out exciting news and more about our products every week at !