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GD-04K  GSM Communicator

GD-04K GSM Communicator

  • Brand::Jablotron
  • Product Code: GD-04K
  • Availability: Pre-Order

Power supply11 – 13 V DC (a 110/230V mains adaptor is included)
Consumption (12V)25 mA in idle state / max. 200 mA
Operating frequency range850 / 900 / 1800 / 1900 MHz (GSM/GPRS)
Rating of outputs250 V AC / 5 A
Output switching period in impulse modeadjustable from 1s to 10 h in 1s increments
Inputs IN1, IN2activated by GND connection, max. voltage 15 V DC
Backup time with the use of the GD-04A moduleup to 24 hours
Dimensions76 x 110 x 33 mm
Operating temperature range-10 to + 40 °C
Ingress protection classIP20 (EN 60529)
Dimensions (without antenna)76 x 110 x 33 mm
In conformity withEN 60950-1, EN 55022, EN 61000-6-3, ETSI EN 301 511, ETSI EN 301 489-1, ETSI EN 301 489-7, EN 50518

The new Generation of GD-04K is a universal GSM dialer and controller with application for Apple and Android devices.

The GD-04 communicator can be programmed using programming SMS messages, or via USB and GD-link PC software and via the Internet using David's Configuration web page

The GD-04K control unit can be also configured remotely through the GD-Link software. Full programming of the GD-04K GSM module options is also available via the My JABLOTRON application.

The web application called My JABLOTRON gives you the highest comfort of controlling appliances from your PC, tablet or smartphone.

Thanks to this app the user can control outputs, check their status and also the status of the inputs, browse the history and manage the whole device remotely. Any action performed by M yJABLOTRON is immediately confirmed so the user has immediate feedback about successful command performance.

Via My JABLOTRON access to the GD-04K module can be shared with other pre-defined users.

MY JABLOTRON application with SMS and email notification is for free and always will be.

GD-04K provides:

    2 output contacts of power relays X and Y (each allows up to 5A/250V)

The outputs can be set as status or impulse outputs (impulse length 1s to 10h). When an output is controlled by ringing, a limitation on the number of control events can be assigned to each phone number (suitable e.g. for various paid entrances where a phone number should have a certain credit representing the number of entries).

    4 input terminals A to D

The inputs react to a connection or disconnection to or from a common GND terminal (ON/OFF). GD-04 controller reporting status of inputs via SMS or call. Up to 100 authorized numbers can be set for control and reporting.

Backed-up operation in the case of a power supply failure (for up to 24 hours) is ensured through the connection of the GD-04A backup module (sold separately).

David can be used as:

  • Remote control from a mobile phone.
  • Remote maintenance, warnings, alarms.
  • Irrigation systems.
  • Remote system monitoring.
  • Plant maintenance.
  • Security systems
  • Alert, panic dialler


Optional accessories:

GD-04A back-up module, which provides David with the ability to work approx. 12 to 24 hours continually without an external power supply


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