TMT250 General description

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TMT250 is a tracking terminal with GNSS and GSM connectivity, which is able to collect device coordinates and transfer them via GSM network to a server. This device is perfectly suitable for applications, which require the location acquirement of remote objects.

Package contents

The TMT250 device is supplied to the customer in a cardboard box containing all the equipment that is necessary for operation. The package contains:

  • TMT250 device;
  • 3.8 V 800 mAh rechargeable Li-ion battery;
  • USB magnetic cable.

Basic characteristics

GSM / GPRS / GNSS features:

  • Teltonika TM2500 quad band module (GSM 850 / 900 / 1800 / 1900 MHz);
  • GPRS Multi-Slot class 12 (Up to 85.6 kbps);
  • SMS (text, data);
  • Integrated GNSS receiver;
  • Up to -165 dBm GNSS receiver sensitivity.


Hardware features:

  • Built-in movement sensor;
  • Built-in Bluetooth® 4.0;
  • Internal High Gain GNSS antenna;
  • Internal High Gain GSM antenna;
  • 800 mAh Li-ion rechargeable 3.8 V battery.

Special features:

  • Fast position fix;
  • High Quality track even in high density urban canyon;
  • Ultra small case;
  • Ready for harsh environment;
  • Easy to mount in limited access areas;
  • Firmly fasten;
  • LED status indication;
  • Real time tracking;
  • Smart data acquisition based on:
    • Time;
    • Distance;
    • Angle;
    • Speed;
    • Movement or any other I/O event;
  • Sending acquired data via GPRS;
  • GPRS and SMS I/O events;

Technical features

Part name Physical specification
Status indication RGB LED
USB Magnetic USB cable
USB Magnetic USB socket
Button 2 configurable buttons
Technical details
2 W max.
Current consumption at 4.2 V
Data sending/gathering every 5 sec. in performance mode: 103.40 mA

Data sending/gathering every 30 sec. in performance mode:: 64.72 mA

Data sending/gathering every 60 sec. In Low Power Mode on movement: 59.00 mA

Data sending/gathering every 120 sec. In Low Power Mode on movement: 34.94 mA

Data sending/gathering every 60 sec. In Low Power Mode on stop: 20.55 mA

Data sending/gathering every 120 sec. In Low Power Mode on stop: 15.10 mA

GNSS sleep: average 12.96

Deep Sleep: average 3.59 mA

Online Deep Sleep: average 4.24 mA

Ultra Deep Sleep: average 1.70 mA

Battery charge current Average 425 mA
Operating temperature Charging 0..+45 °C

Discharging -20..+58

Storage temperature -20..+45 °C
Storage relative humidity 5..95% (no condensation)
Device + case + battery weight 40 g
Dimensions 44 x 43 x 20 mm (L x W x H)
TMT250 working time
GNSS/GPRS reporting Working mode Movement TMT250 working time
0 min Ultra-Deep Sleep No 400 hours
0 min Deep Sleep No 190 hours
0 min Online Deep Sleep No 160 hours
0 min GNSS Sleep No 50 hours
5 sec Performance mode Yes 6 hours
10 sec Performance mode Yes 8 hours
1 min Performance mode Yes 10 hours
1 min Low power mode No 32 hours
2 min Low power mode No 44 hours
10 min Low power mode No 85 hours
1 min Low power mode No 10 hours
2 min Low power mode Yes 18 hours
10 min Low power mode No 36 hours
Testing conditions Room temperature: 20–25°C
Good GSM signal level
Good connection with a server
Number of visible satellites at least: 15
Number of used satellites at least: 10
Firmware: 55.02.01 Rev:00

Dimension drawing:

Technical information about internal battery


Internal back-up battery Battery voltage (V) Nominal capacity (mAh) Power (Wh) Charge temperature (°C) Discharge temperature (°C) Storage temperature (°C)
Li-ion rechargeable battery 3.8 800 3.04 0 to +45 -20 to +58 -20 to +45 for >3 months

Batteries are covered by 6 month warranty support.

  CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
  CAUTION: INCREASED RISK OF SHORTING MAGNETIC CABLES - THE MAGNETIC CHARGING CABLES POSE OF COMING TOGETHER WHEN CHARGING MULTIPLE DEVICES WITHIN CLOSE PROXIMITY.
  Battery should not be disposed of into general household waste.
Bring damaged or worn-out batteries to your local recycling center or dispose them into a battery recycle bin commonly found in supermarkets.

Electrical characteristics

Characteristic description Value
Min. Typ. Max. Unit
Supply Voltage from USB:
Supply Voltage (Recommended Operating Conditions) +4.5 +5 +5.5 V