Unlocked Teltonika FMC125 4G tracker with RS232 and RS485 ports for fuel probes, RFID and Garmin FMI, plus dual Micro-SIM slots, sold with no SIM card for your own compatible IoT or M2M SIM and tracking platform.
The 4G tracker for fleets that connect other equipment: RS232 and RS485 for fuel probes, RFID readers and Garmin navigation, with two SIM slots.
2serial ports
Digital fuel-level probes, RFID card readers, Garmin FMI navigation and LCD displays connect straight to the tracker, so their readings arrive with a time and position attached. RS232 handles all of these; RS485 takes fuel probes.
Peripherals are bought separately, must be a supported type and are set to the right port mode in Teltonika Configurator.
2Micro-SIM slots
A vehicle that works in the UK and abroad can carry a SIM for each, which keeps roaming charges down. On LTE Cat 1, it keeps working on UK networks after 2G closes.
Fuel and other CAN bus data come from a Teltonika LV-CAN200, ALL-CAN300 or CAN-CONTROL adapter wired to the tracker's adapter input. On cars and vans, a Bluetooth OBDII dongle is the alternative.
There is no CAN interface on the tracker itself and no tachograph download. Adapters are bought separately and fitted by an installer.
Drivers can identify themselves with an iButton key or an RFID card, so journeys on shared vehicles are tied to a person. Wired 1-Wire probes or Bluetooth LE sensors record temperature for refrigerated work.
Readers, keys, cards and sensors are bought separately. The IP41 case belongs inside the cab.
Fleet management
Van fleet tracking
See every van on one map, answer "where is my engineer?" in seconds and cut the admin that eats into the working day.
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Safety
Driver behaviour and eco driving
Measure harsh braking, speeding and idling, coach the drivers who need it and cut the fuel and wear bills that follow.
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Cost control
Fuel monitoring and CAN data
Read real fuel level, consumption and odometer straight from the vehicle and find where the fuel budget is going.
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Cold chain
Temperature monitoring
Add a wireless EYE Sensor to record temperature and humidity in vans, trailers and containers alongside their location.
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Fleet management
Rental and leasing fleets
Know where every hire vehicle is, confirm mileage at return and protect vehicles that are out with customers.
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This listing is for a new unlocked Teltonika FMC125 (order code FMC125TLU801), a professional 4G tracker for fleets that connect fuel probes, card readers or navigation units to it. It is sold as hardware only, with no SIM card supplied and no Fleetalyse platform lock.
Choose this unlocked no-SIM version when you want to configure the APN, SIM provider and tracking platform yourself. The FMC125 is also supported on the Fleetalyse tracking platform, so you can move it to Fleetalyse later with bring-your-own-device.
This listing is for new, unlocked Teltonika GPS tracker hardware only. No Fleetalyse SIM card is included, the device is not locked to Fleetalyse, and configuration is completed using your own compatible IoT or M2M SIM card, APN settings and chosen tracking platform.
Optional connectivity for a compatible unlocked tracker. 12-month paid term from first network activation. No automatic repeat charge. Check the included data allowance, roaming availability and setup requirements on the SIM product page. You can also use your own compatible SIM.
View IoT SIM cardUnlocked Teltonika FMC125 4G tracker with RS232 and RS485 ports for fuel probes, RFID and Garmin FMI, plus dual Micro-SIM slots, sold with no SIM card for your own compatible IoT or M2M SIM and tracking platform.
£65.99 inc VAT (£54.99 ex VAT) with free UK delivery. That is the hardware only: no SIM, no subscription and no lock to any platform.
The tracker ships with Teltonika factory firmware and default settings, not configured for Fleetalyse. You fit your own IoT or M2M SIM, set the server and APN with Teltonika's configuration tool, and point it at whichever telematics platform you use. If you later want it on Fleetalyse, bring-your-own-device takes it from £5.99 a month.
Any IoT/M2M SIM with an APN you can set. If you would rather not shop around, add the Fleetalyse IoT SIM on this page: it comes as a 3-in-1 card with roaming in up to 135 countries.
Yes. The FMC125 is 4G LTE Cat 1 with 2G (GSM) fallback, covering the main UK LTE bands (B1, B3, B7, B8 and B20), so it keeps working on LTE after the UK 2G switch-off scheduled from 2029 (EE, O2) into 2030 (Vodafone). It is the 4G replacement for the 2G-only FMB125.
Hard-wired through the supplied 0.9 m I/O cable to a permanent 10-30 V supply with an external 3 A fuse, ground to the chassis and ignition on DIN1, plus any RS232, RS485, 1-Wire or CAN-adapter devices you use; Teltonika recommends taking power straight from the battery terminals. Mount it inside the cab, label side up, because the case is IP41 and both antennas are internal. Fit or change the Micro-SIMs only with external power and the internal battery disconnected. A professional installer is recommended, especially for fuel sensors and serial peripherals.
RS232 supports digital fuel-level sensors (LLS), RFID readers (HID and MF7), Garmin FMI navigation, LCD displays and NMEA or TCP data modes. RS485 supports digital fuel-level sensors and NMEA or TCP data modes. The peripheral must be a compatible type, set to the right port mode in Teltonika Configurator, and is bought separately.
It takes two Micro-SIMs, so you can run SIMs from two providers or two countries and cut roaming costs on vehicles that work abroad. No SIM is supplied with the unlocked tracker.
It has no CAN interface of its own. Vehicle data comes through an optional Teltonika LV-CAN200, ALL-CAN300 or CAN-CONTROL adapter on its CAN-adapter input, or a Bluetooth OBDII dongle. It does not download tachograph files.
Yes, automatically at the basket: 3% off 3+, 5% off 5+, 10% off 10+ units. The discount applies to the hardware in the same order, and it stacks with a referral or promotional code.
UK delivery is free and goes by Royal Mail 24. Orders placed before 2pm Monday to Friday are normally dispatched the next working day, and Royal Mail 24 usually arrives the working day after that, so most UK orders land within two working days. Royal Mail aims at next-day delivery rather than guaranteeing it. Full details are on our delivery page.
Every unit is new, boxed Teltonika stock with the manufacturer's 24-month warranty. Consumers have 14 days to return an unused device under our returns policy, and business customers can talk to us before ordering if they want to check fit on one vehicle first.
Read before you buy: Fuel theft detection with telematics · How to monitor fuel consumption across your fleet · Multi-network SIMs for UK fleets · all 342 supported tracker models
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What customers say
Fast and friendly response, lightning fast delivery. Item exactly as described. A+++ all the way.
great device
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