The E-Track EPSILON is a tracking and two-way communication device based on the Iridium 9602 Transceiver. In addition to its tracking and alert transmission functions (alert button, motion and shock sensors), the EPSILON, allows sending and receiving free (or preset) text messages (using on screen keyboard and three inches LCD color screen) and to report points of interest (POI). It can be used in extreme environments in almost all fields of application.

Epsilon device could either be powered from three primary lithium cells or three NiMH rechargeable batteries or an USB host port and an external high voltage source.

How it Works

The EPSILON allows tracking function (recurrence adjustable by user):

  • To send or receive free or preset text messages (from / to email address, GSM, …)
  • To send Alert (button HELP, motion and shock sensors) messages

Note: In Alert mode, EPSILON device, switch automatically to a higher recurrence. Use of “SEND” button allows going back to Normal mode:

  • To record Point Of Interest (POI)
  • To create zones (geofencing mode)
  • To navigate to a waypoint (compass function) EPSILON has been designed to work with an external antenna if needed.


Technical Specifications & Features

  • Rugged Handheld Messaging Tracker Autonomous
  • Waterproof
  • AA Batteries or Rechargeable Batteries
  • External 7.5 v to 50 v DC Power Supply
  • Embedded NiMH / NiCd Battery Charger
  • Two-way Text Messaging (Free and Preset Messages)
  • High Resolution Color 3 inches LCD Screen
  • Alert and Alarm Functions
  • Motion and Shock Sensors
  • Compass Function (go to function)
  • Point Of Interest Function (POI)
  • Geo-fencing Areas
  • Data Logging
  • Integrated Iridium and GPS Antenna
  • Extreme Conditions Operation
  • Low Power Mode
  • Optional AES Encryption



  • Rugged and Waterproof (IP 67)
  • Dimensions : 14.3 cm (5.63 in.) plus 4,7 cm (1.85 in.) Antenna x 5.7 cm (2.24) x 3.1 cm (1.22 in.)
  • Weight : 270 g (310 g with 3AA Lithium Batteries)
  • I/O Interface USB



  • Operation : – 40 °C (- 40°F) to + 85 °C (185 °F)
  • Storage : – 40 °C (-40°F) to + 85 °C (185°F)


Power Requirement

  • Internal 3 AA Lithium, Alkaline Batteries or NiMH/NiCd Rechargeable Batteries
  • External Input Voltage 7.5 to 50 volt



  • Type 3” TFT Transflective Color Screen
  • Resolution 400 x 240



  • Recording Capacity : 139810 Positions
  • Recording Rate : Adjustable from 1s to 18.2 h