Oyster Cellular Long-Life Battery GPS Tracker


The Oyster is a compact, rugged GPS tracking device that has been designed for tracking containers, trailers, skip bins, and other assets where super-long battery life is required without sacrificing the frequency of updates and performance.

The IP-67 rated housing is rugged and UV stable, so the Oyster can be mounted on assets that are exposed to rain, dust and marine conditions.

By utilising the latest technology, the Oyster can operate in ultra-low power modes, and with an incredible battery life of up to 5 years the Oyster Cellular can be attached to assets and tracked without needing to change batteries. The Oyster has built-in antennas for GPS reception and for cellular communication, a 3D accelerometer, a high-performance GPS that can track both GPS and GLONASS satellites simultaneously and flash memory for storing non-volatile information.

The Oyster Cellular device is available in different versions to cater for different networks around the globe. Enquire with Digital Matter as to availability in your country.

The Oyster Cellular uses 3 x AA 1.5V “off the shelf” Lithium batteries. These are generally available at retail outlets from manufacturers like Duracell and Energizer. Industrial 1.5V Lithium AA batteries are also available at bulk pricing.

The Lithium batteries have excellent performance and capacity, and allow the Oyster Cellular to be used in extreme temperatures and climatic conditions that other tracking devices simply cannot operate in.

  • IP67 Rugged weather-proof housing
  • Fully powered by 3 AA consumer batteries
  • Up to 5 years tracking on 2G or 3G network (once daily)
  • Small, Compact and easy to install and conceal
  • Configure Over the Air (OTA)

  • Locate assets for extended periods

    Track up to 5 years (once daily) Using 3 standard size A-cell alkaline batteries or two years with regular updates.

    Non-powered assets 

    Ideal for equipment, containers, skips, trailers, pumps, generators and other non-powered assets that are exposed to the elements.

    Configure Over The Air (OTA)

    Configure device parameters remotely including accelerometer sensitivity, frequency of logging and uploads.


    Hardware Features

    Low-profile IP67 rugged housing

    The IP67 rated housing is made of sturdy ABS/Polycarbonate plastic to survive bumps and knocks and to survive many years in the sun and weather.

    It is low-profile making it easier to mount in the corrugation on containers or concealed on the underside of a trailer, for example.

    The housing screws together for easy assembly, and has 2 convenient mounting tabs. It also has ‘strap slots’ allowing the Oyster to be cable tied or metal strapped to an asset.

    Dimensions: 100 mm x 65 mm x 19 mm (excl. mounting tabs)
    Weight: 160 grams with batteries


    AA size

    The Oyster uses 3 x “AA” size 1.5V Lithium batteries which provide a balance between size and capacity

    Off-the-shelf Lithium

    The Oyster Cellular must be fitted with off-the-shelf 1.5V Lithium batteries. These are readily available from retail outlets, for example Duracell and Energizer.

    Sleep Current

    10uA (micro amps)



    Battery Life with Adaptive-Tracking

    The Oyster can be set to use Adaptive-Tracking technology where the accelerometer and GPS data are used to intelligently work out if it is moving and to send frequent updates, and to scale the update rate down to once per day if the asset is stationary - to preserve battery life.

    5 years @ one position per day (at 25°C)

    Operating Temperature

    -20°C to +60°C 1

    For operation in extreme temperatures, the Oyster must be fitted with Lithium batteries. Batteries are affected by temperature extremes and typical performance is dependent on temperature

    High sensitivity GPS

    UBLOX MAX-M8Q GPS module

    Supports concurrent GPS and GLONASS
    72 channel high sensitivity receiver
    -167dBm industry leading tracking performance
    Optimal hot-start performance
    AssistNow Offline aiding data for fast time-to-first-fix and performance in urban canyon environments


    The Oyster uses both the GPS and GLONASS positioning systems simultaneously.

    This allows the device to use twice the number of satellites to get a position fix – making it faster and more accurate.

    Low noise GPS amplifier

    GPS signals are boosted by a special low-noise amplifier (LNA)
    This allows the Oyster to operate where normal units will fail to receive GPS signal – like in a container stack!

    Cellular Communications

    The Oyster Cellular can be manufactured for specific markets around the world depending on their modem requirements:

    2G Modem

    Quad Band GSM/GPRS Class 10
    850 / 900 / 1800 / 1900 MHz

    3G Modem – EU

    850 / 900 / 2100
    EMEA / APAC / Latin America

    3G Modem - NA

    850 / 1900 / AWS
    North America (AT&T)

    LTE-CAT1, CATM and NB-IOT currently in development

    Enquire for other bands and LTE / 4G options


    In progress

    Internal Antennas

    Internal GPS and Cellular RF antennas tuned by the RF laboratories to ensure optimal performance

    3 axis accelerometer

    The 3-axis accelerometer allows the Oyster to ‘sleep’ in an ultra-low power state yet still wakeup when movement occurs.

    Future firmware versions will allow for harsh G-force detection (like assets being dropped or involved in accidents)

    Flash memory

    The Oyster has enough flash to store over 50,000 data records, and will record information even when out of cellular coverage.

    The flash memory is also used to store firmware updates, GPS aiding data, parameters and other important information.

    A future firmware version will allow for geo-fences to be loaded into the flash memory of the device and used for geo-fence alerting on the device.

    The Oyster is a stand-alone tracking unit and therefore does not have peripherals available.

    Firmware Smarts

    OTA Configuration

    The Oyster can be remotely configured and updated OTA (over the air). Device management is performed from Digital Matter’s OEM Server device management platform.

    Recovery Mode

    The Oyster can be remotely switched into Recovery Mode which switches the device to do live tracking and reporting – so that you can get your asset back!


    Auto-APN allows the Oyster to analyse the SIM card and select the correct APN details from a list that is pre-loaded in the device’s firmware. This means that the Oyster can be shipped world-wide without requiring specialist setup for SIMs.

    Text Message Setup

    The Oyster can also be sent text messages to setup the APN, and other details

    AssistNow Offline

    The Oyster will track successfully where other devices just give up.

    This fantastic technology allows the GPS to predict which satellites are in orbit above it and to dramatically reduce the time-to-first-fix of the GPS, and the overall performance of the GPS, especially in ‘urban canyon’ or forested environments.

    G-Force Events

    A future firmware version will allow for harsh G-force detection (like assets being dropped or involved in accidents) and report these to the server.


    The Oyster has the capacity to hold hundreds of geo-fences that can be downloaded to it from the server and updated Over-The-Air.

    A future firmware version will allow the Oyster to use this geo-fence information to implement geo-fence based alerting on the device.

    Support Documentation

    Download Resource documents for the OYSTER
    Support >

    Software & Data Management

    All Digital Matter cellular devices are fully managed Over-The-Air (OTA) via our OEM Server web interface. The OEM Server seamlessly manages:

    • Device firmware – firmware updates can be done remotely
    • Network (administrator) parameters relating to critical communications
    • System parameters, including GPS parameters, IO configuration, logging options and general device behaviour settings
    • GPS and GLONASS AssistNow Offline aiding data files
    • Remote debugging of devices, including being able to trace data, view detailed debug message logs, and view a live trace of the server debug messages
    • Remote disconnect and reboot of devices
    • Provides a command and message queueing platform to the devices and is incorporated into the remote management and debugging applications

     Data Connectors

    The OEM Server provides Data Connectors that forward data records on to the software platform of your choice, including Digital Matter’s own Telematics Guru and GPS Log Book platforms.

    More information on the OEM Server can be found at http://www.digitalmatter.com

    If you would like to integrate the Remora into a software system, then please contact Digital Matter for more information on our integration protocols.

    IP67 Weather-Resistant, Rugged Housing

    The IP67 rated housing is made of sturdy ABS/Polycarbonate plastic to survive bumps and knocks and to survive many years in the sun, rain and weather.

    Compact & Low-Profile

    Compact and low-profile means easy mounting in the corrugation on containers or concealed on the underside of a trailer.

    Housing screws together for easy assembly, and has 2 convenient mounting tabs. It also has ‘strap slots’ allowing the Oyster to be cable tied or metal strapped to an asset.