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:

Tmt250 view dims.png

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.

Bw nb.png CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
Bw nb.png CAUTION: INCREASED RISK OF SHORTING MAGNETIC CABLES - THE MAGNETIC CHARGING CABLES POSE OF COMING TOGETHER WHEN CHARGING MULTIPLE DEVICES WITHIN CLOSE PROXIMITY.
Bw disposal.png 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