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Teltonika TMT250 is an AUTONOMOUS personal tracker with GNSS, GSM and Blue-tooth connectivity.

  • Blue-tooth
  • SMS
  • GPRS
  • GNSS
  • IP67
  • Battery
  • Internal GNSS antenna
  • Internal GSM antenna
  • 128MB memory
  • Alarm button
  • Auto Geofence
  • Man-down

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Product Description

Teltonika TMT250 is an AUTONOMOUS personal tracker with GNSS, GSM and Blue-tooth connectivity. This mini tracker is designed for people, pets, car monitoring, employees control, sport events, etc. IP67 waterproof case ensures outside usage in harsh conditions, moreover large battery‘s capacity expands application range where long battery lifetime is needed. In addition to that, TMT250 supports hands-free, firmware and configuration update via Blue-tooth.


Alarm button

A big alarm button can save your life in the event of an accident, fall or in a case of emergency. Direct voice call or message sending via GPRS/SMS can be activated with a single press of the button.


Small casing

Smallest Teltonika personal tracker up to date – with a size of only 44 x 43 x 20 mm. Such device can be easily fitted into the users pocket or mounted on your pets collar.




Used to detect employees, elderly people and lone workers falling down. TMT250 can monitor user’s vertical or horizontal position without any button press and immediately activate an alarm if configured position is changed.


Certified IP67 case

Expand the usage limits of the device even more. TMT250 features a waterproof (IP67) case design which ensures increased protection against dust ingress and water.


Integrated battery

Internal Li-ion battery of 800mAh capacity ensures long autonomous working hours.



Integrated Blue-tooth enables wireless headset and various other Blue-tooth devices connectivity. Make phone calls to your employee via Blue-tooth headset. No unauthorized calls anymore! Be sure that your employee is always safe and uses hands free headset instead of phone!



TMT250 scheme new


  • GNSS i Global positiong system/Global Navigation Satellite System.
  • GPRS i General Packet Radio Service (GPRS) is a packet oriented mobile data service based on the 2G technology.
  • SMS i Short Message Service (SMS) is a text messaging service component.
  • Blue-tooth i Blue-tooth is a wireless technology standard for exchanging data over short distances.

  • 1x Micro-SIM card i Allows to insert 1 Micro-SIM card for GSM and GPRS connectivity.
  • 128MB memory i Internal memory for records storing when there is no GPRS connectivity.
  • Internal GSM antenna i An antenna used for GSM connectivity. Integrated into device PCB. Does not have external connector.
  • Internal GNSS antenna i An antenna used for GPS connectivity. Integrated into device PCB. Does not have external connector.
  • Battery – 800mAh Li-ion 3.8V
  • IP67 i Protected from total dust ingress, immersion between 15 centimeters and 1 meter in depth.
  • USB 2.0 Interface i Device accessible and configurable via USB
  • Gyroscope & Accelerometer i Gyroscope and accelerometer allows device to detect movement and precise angle changes in case of event like man-down.
  • 2 configurable keyboard buttons i Allows the user to set different functions on two integrated buttons.

  • NITZ time synch. i Network Identity and Time Zone (NITZ) is a mechanism for provisioning local time and date, time zone and DST offset, as well as network provider identity information, to mobile devices via a wireless network.
  • Configuration over Blue-tooth i Configuration over Blue-tooth gives ability to configure the device remotely by using Blue-tooth connection.
  • Geo-fence i A functionality, which generates an event when crossing a defined area. It can be used to detect wherever car enters or leaves customized areas
  • Sleep modes i Power saving modes which allow devices to reduce consumption and save internal or vehicle battery.
  • FOTA i Firmware over the air solution. The software is used to send firmware/configuration to device via GPRS network.
  • GPRS commands i It is possible to send commands to device using GPRS. GPRS commands can be used for sending configuration, debug, digital outputs control commands etc. These commands should be coded into a special codec12 format.
  • NTP time synch. i Network time protocol (NTP) is used to get the right time without GPS connection. This functionality gives an ability to monitor the device state in the real time.
  • SMS event i SMS event is a special functionality which is used to notify the user about the tracker initial state. Any changes of speed, engine status, over speeding or etc. will be informed with SMS.
  • Remote configuration over SMS i The remote configuration via SMS gives an ability to configure the device via SMS
  • Man-down i This function is used to monitor device position. If position is changed above configured threshold – device activates man-down event.
  • Offline tracking i Offline tracking is used to track the object position while GPRS is not activated.
  • Auto Geofence i Once enabled TMT250 sets up a virtual zone around it with a predefined radius. In case the zone is crossed without the function deactivated – an Auto Geofencing event will be generated.
  • Alarm button i The alarm button functionality is responsible for event generating while Alarm button is pressed.

Technical details

GSM/GPRS features:

  • Quad-band 900/1800 MHz; 850/1900 MHz
  • GPRS Multi-Slot Class 12(up to 240 kbps)
  • GPRS Mobile Station Class B
  • SMS (text/data)


  • Blue-tooth specification V3.0
  • Blue-tooth transceiver compliant with Blue-tooth specification V3.0 for external peripherals:
    • Voice calls over Blue-tooth
    • Configuration via Blue-tooth
    • Blue-tooth sensors
  • Low Energy Blue-tooth V4.0
  • Blue-tooth transceiver compliant with Blue-tooth specification V4.0 for external peripherals:
    • Beacons
    • Low power sensors


  • Tracking: 33/99 acquisition channels
  • -165 dBM sensitivity
  • Hot start <1s
  • Warm Start <25s
  • Cold start <35s
  • NMEA-183 protocol
  • Accuracy <3m


  • Magnetic USB cable
  • 2 configurable buttons
  • Built in accelerometer/gyroscope
  • Internal 800mAh battery
  • Internal High Gain GNSS antenna
  • Internal High Gain GSM antenna


  • Alarm button
  • Man-down detection
  • Auto Geofencing
  • 50 Manual Geofence zones
  • Over Speeding
  • GPS Sleep/Deep Sleep/Online deep sleep modes
  • Action on call feature
  • Two – way communication over Blue-tooth headphones
  • Real Time tracking
  • Sending acquired data via GPRS (TCP/IP and UDP/IP protocols)
  • Smart algorithm of GPRS connections for GPRS trafic saving
  • Operating in roaming networks by preferred GSM providers list
  • Events from I/O elements detection and sending via GPRS or SMS
  • Authorized numbers
  • Time synchronization over NTP and NITZ
  • Offline tracking mode
  • SMS/GPRS requests
  • Firmware and configuration update via Micro USB/FOTA
  • Configuration through SMS
  • Smart data acquisition and power saving modes
  • High Gain internal GNSS and GSM antennas
  • 1 RGB status LED
  • Dimensions 44x43x20 mm


Order codes

Standard Order codes:

TMT25084A500 order code contains:

  • TMT250 tracker
  • Magnetic USB cable
  • Internal battery – 800mAh
  • Screw driver

TMT250841200 order code contains:

  • TMT250 tracker
  • Magnetic USB cable
  • Internal battery – 800mAh
  • Screw driver
  • Wall charger