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We would like to respond openly to every negative review about us. Many are posted anonymously, so we cannot reach those customers directly. This open letter is our reply, and we would be grateful if you took a moment to read it.

But here is what a one-star review will never tell you:

  • We import from 70+ official distributors. That is why you pay far less than local retail — and why delivery takes longer. We publish the date before you pay, never after.
  • You can pay only when your goods land in Johannesburg. Pay on Arrival, no full payment up front. Ask yourself what scammer offers that.
  • Nobody has ever lost money with us. You get the product, or you get a refund. There is no third option, and there never has been.
  • We are part of the ITwork group — ten years trading in Europe, nine stores, thousands of positive reviews.
  • Johannesburg and Cape Town stores open this year — real shelves, real stock, walk in and buy the same day.

We are not satisfied with our review scores, and we are not going to fix them by hiding anything. We are fixing them by being faster, clearer and easier to reach than any reason to complain.

Read the full letter — photos and video of real shipments, and a straight answer to every accusation.

Problem with an order right now? Write to [email protected], [email protected] or [email protected] — answered the same business day. The letter also lists our group and store owners' contacts.
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DIGITAL MATTER Barra GPS Cat-M1 / NB-IoT / full GNSS

DIGITAL MATTER Barra GPS Cat-M1 / NB-IoT / full GNSS
DIGITAL MATTER Barra GPS Cat-M1 / NB-IoT / full GNSS
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R2,396
Fleet managers overseeing remote assets across harsh environments rely on the DIGITAL MATTER Barra GPS tracker to deliver precise location data without constant battery swaps. Its rugged IP67 housing shrugs off dust and water, while the 1100mAh backup battery keeps tracking alive during power interr... Read More
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Stock Out Of StockNo Stock Code 3380651 Brand DIGITAL MATTER Model BARRA-GPS-4G Warranty 2 Years

Shipping & Returns

Fleet managers overseeing remote assets across harsh environments rely on the DIGITAL MATTER Barra GPS tracker to deliver precise location data without constant battery swaps. Its rugged IP67 housing shrugs off dust and water, while the 1100mAh backup battery keeps tracking alive during power interruptions. The device taps into LTE-M and NB-IoT networks for broad coverage, and its concurrent GNSS engine locks onto GPS, GLONASS, Galileo, and BeiDou satellites for pinpoint accuracy.

Key specifications

  • Cellular connectivity: LTE-M (Cat-M1) and NB-IoT
  • GNSS support: GPS, GLONASS, Galileo, BeiDou (concurrent)
  • Power input: 8-45V DC
  • Backup battery: 1100mAh LiPo rechargeable
  • Digital inputs: 2
  • Analog input: 1 (0-30V)
  • Switched ground output: 1
  • Internal sensors: 3-axis accelerometer
  • Enclosure rating: IP67 dust and water resistant
  • Operating temperature: -30°C to +60°C
  • Antennas: internal cellular and GNSS
  • SIM card type: Nano SIM (4FF)
  • Firmware updates: over-the-air (FOTA)
  • Data logging: internal flash memory
  • Geofencing: supported
  • Power consumption: ultra-low power modes

Why choose it

The Barra GPS tracker combines rugged durability with flexible connectivity, making it a reliable choice for tracking vehicles, trailers, and equipment in demanding conditions. Its wide voltage range and backup battery ensure continuous operation even when primary power is lost. The built-in accelerometer enables motion detection and impact alerts, while geofencing and over-the-air updates simplify fleet management.

Ideal use cases

  • Tracking trailers and containers across long hauls
  • Monitoring construction equipment and generators
  • Securing rental fleets and high-value assets
  • Logistics and cold chain visibility
  • Agricultural machinery and field equipment

Good to know

Installation is straightforward with the 8-45V DC input, and the internal antennas eliminate external wiring. The device uses a Nano SIM card and supports low-power modes to extend battery life when not connected to a power source. Its IP67 rating means it can withstand temporary submersion and heavy rain, making it suitable for outdoor use year-round.

Specifications
Battery capacity
1100 mAh
Battery technology
Lithium Polymer (LiPo)
Brand
DIGITAL MATTER
Built-in memory
Yes
Built-in memory capacity
Not specified
Category
GPS Tracker
Channels quantity
4
Electronic compass
No
Geotagging
Yes
International Protection (IP) code
IP67
Model
Barra GPS Cat-M1 / NB-IoT / Full GNSS
MPN
BARRA-GPS-4G
Operating temperature (T-T)
-30 - 60 °C
Product type
GPS Tracker
Protection features
Dust resistant, Water resistant
Rechargeable battery
Yes
Remote control function
No
Removable battery
No
SIM card capability
Single SIM
SIM card slot
NanoSIM
Sleep mode
Yes
Tracking function
Yes
Weight
0.3 kg
Price history over the last 6 months
DIGITAL MATTER Barra GPS Cat-M1 / NB-IoT / full GNSS
Current
R2,396
Lowest
R1,998
Highest
R2,396
Change 24H
+R397   +20%
Week
—   
Month
—   

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