Teltonika FMB120 - Wired Vehicle Tracker
GNSS/GSM/Bluetooth® tracker with internal GNSS/GSM antennas and internal battery.
Product Details
The FMB120 is the workhorse of the Teltonika wired range and the most widely deployed model in this group. It pairs the FMB110 I/O block with a 170 mAh backup battery, so the tracker keeps reporting — and raises an unplug alert — when the vehicle supply is cut.
FleetStack Advantage
Get on-trip and off-trip vehicle distance covered
Monitor deviated distance, time, and number of vehicle trips
Analyse aggressive driving behaviour, including overspeeding, harsh braking, acceleration, and cornering
Detect towing events with alerts
Track driver performance, incident summary, top drivers, and much more
Prevent vehicle theft with geofencing
Manage the maintenance of the vehicles efficiently and on time
Create and manage trips on the move
Key Features
The most widely deployed wired tracker in the Teltonika FMB range.
170 mAh backup battery keeps reporting through a cut supply.
Two digital outputs for relay, buzzer or starter control.
1-Wire bus for temperature sensors and iButton driver identification.
General Information
- Product Type
- Wired Vehicle Tracker
- Manufacturer
- Teltonika Telematics
- Country of Origin
- Lithuania
- Weight
- 55 g
- Operating Temperature
- -40 °C to +85 °C
- Operating Humidity
- 5% to 95% non-condensing
Network and Connectivity
- Network
- 2G (GSM/GPRS), GNSS, Bluetooth
- Interfaces
- 2 digital inputs, 2 digital outputs, 2 analog inputs, 1-Wire
Power
- Power Supply
- 10 - 30 V, 1.5 A max
- Built-in Battery
- 170 mAh Li-ion (3.75–3.90 V)
Server Connection
- Server Host
- Issued with your FleetStack account credentials
- Server Port
- 5027
- Protocol
- Teltonika (Codec 8 / Codec 8 Extended / Codec JSON)
Supported Functions
Documents & Manual
Other Supported Devices
Frequently Asked Questions
Which server port does the Teltonika FMB120 use with FleetStack?
The Teltonika FMB120 connects on port 5027 using the Teltonika protocol, with Codec 8, Codec 8 Extended and Codec JSON all supported. The server host is issued with your FleetStack account credentials. Ports for other models are on the device port list.
What can I connect to the Teltonika FMB120?
The FMB120 provides 2 digital inputs, 2 digital outputs, 2 analog inputs, 1-Wire. Power is 10 - 30 V, 1.5 A max. Sensor and I/O data feeds fuel management, driver behaviour and the alert center. The full pin detail is in Teltonika's datasheet, linked in the documents above.
Which mobile network does the Teltonika FMB120 use?
The FMB120 runs on 2G (GSM/GPRS), GNSS, Bluetooth. Where a 2G network has been retired, Teltonika offers 4G models in the same family — contact FleetStack and we will confirm which suits your market.
Does the Teltonika FMB120 have a backup battery?
Yes — a 170 mAh Li-ion (3.75–3.90 V) backup cell. It is not the primary supply; it keeps the tracker reporting through an external power cut and lets the device raise an unplug alert.
What operating conditions does the Teltonika FMB120 tolerate?
Operating temperature is -40 °C to +85 °C at 5% to 95% non-condensing humidity. Teltonika does not publish an ingress protection rating for this model, so plan for a protected in-cabin or behind-panel installation.
Get Started With Us
Tell us about your fleet and we will get back with pricing, availability, and an onboarding plan for the Teltonika FMB120. You can also book a meeting or read the REST API docs.