TMT250 General description

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Main Page > SAS Personal Trackers > TMT250 > TMT250 Manual > TMT250 General description

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 class 12 (Up to 240 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
GPRS: max average 95.57 mA
Nominal: average 44.20 mA
GNSS sleep: average 8.02 mA
Deep Sleep: average 3.43 mA
Online Deep Sleep: average 3.93 mA
Ultra Deep Sleep: average 1.50 mA
Battery charge current Average 700 mA
Operating temperature -25..+55 °C
Storage temperature -40..+70 °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)

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 +60 -20 to +45 for 1 month
-20 to +35 for 6 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 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:
Supply Voltage (Recommended Operating Conditions) +4.5 +5 +5.5 V