Our first GPS/4G module obtains position within thirty seconds of a cold start. The combination of Ignion’s Virtual Antenna© Technology and Nordic’s nRF9160 is surprisingly efficient and compact as it dynamically handles LTE-M, NB-IoT (700-960 MHz + 1710-2200 MHz LTE) and GPS in a very small footprint. We have deployed more than 100 units out of a 600 series and, so far, the result is excellent.

The next step is to obtain Atex certification (Explosive Atmospheres), which was forbidden in our previous version of GPS/GPRS due to its higher power consumption.

4G Features

  • LTE transmitter and receiver module:
    • LTE-M: 300/375 kbps.
    • Power output: Up to 23 dBm.
    • RX Sensitivity: LTE-M: -108 dBm.
    • 700-2200 MHz LTE band suport (Cat-M1: B1, B2, B3, B4, B5, B8, B12, B13, B14, B17, B18, B19, B20, B25, B26, B28, B66).
  • 3GPP LTE release 13 Cat-M1 and Cat-NB1 compliant
  • FOTA (Over-the-air programming), DFU (Device Firmware Update) over internet.

GPS Features

  • GPS receiver
  • GPS L1 C/A supported
  • Assisted GPS (A-GPS)
  • Acquisition sensitivity: -147 dBm
  • Tracking sensitivity: -155 dBm
  • GPS L1 C/A supported
  • QZSS L1 C/A supported

On demand

  • External Sensors Option 1:
    • 4 digital inputs/outputs
    • 2 external analog input sensors (i.e. Temperature, humidity….)
    • I2C communication for external sensors with serial communication.
  • External Sensors Option 2:
    • 4 digital inputs/outputs
    • 2 external analog input sensors (i.e. Temperature, humidity….)
    • I2C communication for external sensors with serial communication.
    • UART communication, connect to external Bluetooth module.


The management of Devalirian Engineering, S.L. establishes a management system policy and objectives that are updated annually according to the results and corporate strategy.

In Devalirian Engineering, S.L. we have a total commitment to meet the requirements of our activity pursuing excellence. We have followed this premise since our foundation and it will continue to be a maxim for all of us in the company. For this it is essential to train our team as highly competent professionals to obtain the confidence and satisfaction of our customers. Since our activity is 100% related to customer service, we have no doubt about the priority of this statement and at the same time we have no doubt about its success.

Regarding the relationship we maintain with our clients, in the provision of our services and in the delivery of the projects we implement, the commitment to quality and continuous improvement is present in all the processes that relate us to the client.

Devalirian Engineering, S.L. has implemented an information management and security system within the organization, whose main objective is to achieve the satisfaction expected by customers, through established processes based on a process of continuous improvement, ensuring the continuity of information systems, minimizing the risk of damage and ensuring compliance with the objectives set to ensure at all times the confidentiality, integrity and availability of information. To this end, Devalirian Engineering, S.L. assumes its commitment to quality and information security according to the ISO/IEC 27001 reference standard and establishing the following principles:

Ensure that customer requirements are determined and met with the objective of improving customer satisfaction.
To offer high availability services and protect all our information and that of our customers by complying with controls to protect against loss, manipulation or unauthorized disclosure.
To ensure the satisfaction of our customers, including the parties interested in the company’s results.
Ensure the confidentiality and integrity of the data managed by the company and the availability of information systems, both in the services offered to customers and in internal management, avoiding undue alterations in the information.
Ensure the capacity to respond to emergency situations, restoring the operation of critical services in the shortest possible time.
Establish the appropriate measures for the treatment of risks derived from the identification and evaluation of assets.
Comply with the requirements of the applicable legislation and regulations applicable to our activity, the commitments acquired with clients and interested parties, as well as all those internal rules to which the company is subject.
To propose and evaluate improvements in the internal organization and in our working methods.

The management of Devalirian Engineering, S.L. periodically reviews the management system to ensure its suitability, adequacy and continued effectiveness.

In this review, opportunities for improvement of the system and process control are evaluated, and needs for changes in the management system are detected.

Translated with www.DeepL.com/Translator (free version)


Our clients often ask us if it is prudent to use a Raspberry Pi in an industrial environment and, despite doubts, more and more companies are choosing to base their new developments on a Raspberry. The reasons are well known: reasonable computing power, excellent video camera handling, wifi / ethernet connectivity, I/O expansion bus, and a huge and very active community of enthusiasts.

There are only three weaknesses inherent to the hardware and the operating system to consider:

1) The ambient temperature cannot exceed fifty degrees centigrade

2) The SD card on which the operating system resides is sensitive to vibrations

3) NOTHING SHOULD BE WRITTEN to the SD, due to the risk of corrupting the file system by abruptly shutting down the Raspberry.

Wait, temperature below 50 degrees, no vibrations and no writing to the SD? Seriously?

Well, the truth is that yes, it’s not as bad as it’s made out to be the so-called “industrial environment”.

Yes, of course, the official temperature range of an industrial environment is -20 up to 85 degrees, but the truth is that the control electronics are usually placed in a connection cabinet located inside the facilities, which translates into a very comfortable and fairly controlled temperature range (far from the Siberian cold and the Saharawi heat)

Therefore, if we know that the destination of our equipment is a switch cabinet, we do not have to fear neither the temperature nor the vibrations.

It only remains to solve the detail of NOT WRITING ANYTHING IN THE SD. Well, the trick is to create a “ghost” drive, which, instead of residing in the SD, resides in the RAM.

In this disk unit, we will direct all those writing operations that the operating system needs to maintain its activity. Operations that, for the most part, are log files that are not very important or temporary semaphores.

Okay, but what about our data?

In the cloud: The Raspberry has ethernet, wifi and all the communications and network support that Linux offers us. There is no need to save permanent data on the SD.

We trust that this reflection will be useful to you.

It is just a paper, but behind there are hours and hours of work (and many months of waiting …)

Number of the certificate: Numero del Certificato: XEF 21 ATEX 0040 X Issue Number: 0
Equipment or protective system: Apparecchiatura o sistema di protezione: Precintank ESLC
Manufacturer: Fabbricante: Equiptank Engineering, S.L.

II 2(2) G Ex eb ib [ib Gb] IIB T4 Gb