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The FMT100 is a permanently hard-wired GPS tracker designed for covert, always-on vehicle tracking. By connecting directly to your vehicle’s constant 12V power supply, the FMT100 is always powered — even when the ignition is off — so you never miss a movement event, tow alert, or unauthorised start. It’s the right choice when you want a set-and-forget tracker that stays hidden and never needs charging.
Teltonika FMT100 hard-wired vehicle GPS tracker

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What’s in the Box

  • FMT100 tracker unit
  • Wiring harness (power, ground, and ignition sense leads)
  • Quick-start guide
For the full manufacturer reference, visit the FMT100 User Guide.

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Before you begin

If you haven’t already, activate your tracker, then download the app and sign in with the same account.

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Installation

1

Plan your installation location

Choose a concealed location inside the vehicle where the FMT100 will be hidden. Popular spots include behind the dashboard, inside the engine bay (away from heat and moisture), under a seat, or within the boot/trunk lining. The device should be positioned so that it has reasonable line-of-sight to the sky — even through thin plastic panels — for the best GPS signal.
2

Identify your power connections

You will need access to three circuits in your vehicle:
  • Constant 12V — always live, even with the ignition off (e.g. the battery terminal, a fuse box feed)
  • Ignition-switched 12V — only live when the ignition is on (optional, for ignition-sense wiring)
  • Ground — a clean chassis ground point
If you are not confident identifying these circuits, consult a professional auto electrician before proceeding.
3

Connect the power lead

Connect the red wire to a constant 12V source. Using an in-line fuse tap on an appropriate fuse in the fuse box keeps the installation tidy and protects the circuit. Always use the correct fuse rating as specified in the FMT100 user guide.
Example FMT100 installation connected to a vehicle battery power source
4

Connect the ground lead

Connect the black wire to a clean chassis ground — a bare metal bolt on the vehicle’s body or frame is ideal. A secure ground connection is critical; a poor ground is the most common cause of intermittent tracking issues.
5

Connect the ignition sense lead (recommended)

If your harness includes an ignition sense wire, connect the yellow wire to a 12V source that is only live when the ignition is on. This allows the FMT100 to detect ignition state and log trip start/end times accurately.
6

Secure and conceal the device

Tuck the FMT100 into your chosen hiding spot and secure all wiring neatly using cable ties. Route wires inside existing cable looms or behind trim panels for a professional, tamper-resistant result.
7

Verify operation

Restore power and check the LED indicators to confirm the FMT100 has powered on, acquired GPS, and connected to the network. Confirm live tracking is visible in the ShieldGPS app.

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Powering On & First Use

The FMT100 powers on automatically as soon as it receives 12V power through the wired connection — there is no power button. On first use, allow up to 3 minutes for the device to:
  1. Initialise and run self-checks
  2. Acquire a GPS fix (best done outdoors with clear sky view)
  3. Connect to the 4G network
  4. Begin transmitting location data to the ShieldGPS platform
Because the FMT100 is connected to a constant 12V source, it remains active at all times and will alert you to any movement even when the vehicle is parked.

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Check tracking in the app

1

Open your tracker

Open the ShieldGPS app or web dashboard and sign in with the account you used during activation. Select your FMT100 from the device list — activation adds it to your account automatically.
2

Confirm live tracking

Your FMT100 will appear on the map with real-time location, ignition status, and speed. Location updates every 10 seconds while the vehicle is in motion.

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LED Indicator Meanings

Annotated FMT100 tracker showing its power wires, status and navigation LEDs, and IMEI location
The FMT100 requires direct wiring into your vehicle’s electrical system. If you are not experienced with automotive electrics, we strongly recommend having the device installed by a professional auto electrician. Incorrect wiring can damage your vehicle’s electrical system and may void your vehicle warranty.
Connect the FMT100 to a constant 12V source (not a switched source) so that it remains powered and can detect movement, towing, or unauthorised starts even when the ignition is off — that’s when theft is most likely to occur.