In a few words

SIGFOX is an operated telecommunication network, dedicated to the Internet of Things.

It is an operated network, meaning you do not have to handle any installation or maintenance operations.
SIGFOX is seamless and out-of-the box, allowing you to forget about communication and keep focused on the core of your project.

It is a LPWA (Low-Power Wide-Area) network, currently deployed in Western Europe, San Francisco, and with ongoing tests in South America & Asia.

The SIGFOX allows a bidirectional communication, both from & to the device.
The communication is always initiated by the device.

The SIGFOX network is designed for small messages sent every now and then. It is not appropriate for high-bandwith usages (multimedia, permanent broadcast).

Its focus on energy efficiency allows you to build connected devices able to last years on a standard battery.


The SIGFOX network operates on sub-GHz frequencies, on ISM bands : 868MHz in Europe/ETSI & 902MHz in the US/FCC.

SIGFOX uses an Ultra-Narrow Band (UNB) modulation, which is key to our ability to provide a scalable & high-capacity network.

With a 162dB budget link SIGFOX enables long range communications, with much longer reach than GSM.

There is no negotiation between the device and a receiving station. The device simply emits in the available frequency band (+/- its own frequency shift).
The signal is detected by the closest base stations, decoded & forwarded to the network backend.
Deduplication & other protocol operations are handled by the network itself.
Messages are then forwarded to your own application, and made accessible using SIGFOX's API.

Each message is authenticated using a hash mechanism, and a private key specific to the device.
This offers a great protection against replay attacks.
The SIGFOX radio protocol also offers a great resistance to interferers.

SIGFOX Specifics

In a few words

Message size

You can send up to 12 bytes (96 bits) per message.
The protocol metadata already includes a timestamp & the device unique id.

Number of messages

The maximum number of messages that can be sent each day is 140.
This limitation is introduced, in part, to comply with regulations. The european regulation governing the 868MHz band enforces a transmission duty cycle of 1%.

A unique device is therefore not allowed to emit more than 1% of the time each hour and since emission of a message can take up to ~6 seconds, this allows up to 6 messages per hour.

How to get started ?

You need 3 things to get started with SIGFOX :

Hardware solutions

SIGFOX makes its IP available at no cost to silicon and module vendors. This strategy has encouraged leading silicon and module vendors to integrate SIGFOX in their existing assets, giving solution enablers a wide choice of very competitively priced components.

SIGFOX enables bi-directional as well as mono-directional communications and can co-exist with other communication protocols, both short and long range.

High energy consumption has been a major obstacle with regards to unleashing the potential of the Internet of Things, which is why one of the key elements of the SIGFOX strategy is to continue to push the boundaries for energy consumption lower and low

The increasing number of M2M and Internet of Things solutions calls for better interoperability solutions, which can only come through standardization. As the first Internet of Things operator, SIGFOX has taken a lead in this process through the foundation of dedicated standardization groups within recognized standards bodies such as ETSI and others.

Check the SIGFOX Partner Network to check the full list of available solutions from our partners.


Descriptions provided by vendors

Silicon Labs


Silicon Labs’ Si446x devices are high-performance, low-current transceivers covering the sub-GHz frequency bands from 119 to 1050MHz.

Texas Instruments


The CC120 device is a fully integrated single-chip radio transceiver designed for high performance at very low-power and low-voltage operation in cost-effective wireless systems.


Descriptions provided by vendors


ATA 8520

The ATA8520 incorporates a RF front end, a digital baseband and a microcontroller in a single chip.
Firmware stored in internal memory supports the chip’s operations, including handling of the SIGFOX protocol.
A serial peripheral interface provides for external control and configuration.
The single chip solution provides extremely low power consumption.

ON Semiconductor


The AX-SIGFOX is a SoC solution adding SIGFOX functionality for up-link and down-link to any existing system at the cost of 20x13 mm2 PCB area.

The radio part of AX-SIGFOX makes use of the AX5043 lowest power radio.

Design and application notes are downloadable from the product web site.


Descriptions provided by vendors


Si 828 25mW

RF Module optimized for very long range/low consumption applications.

The implementation of UNB technology allows communication with the SIGFOX network.
This product is for the custom design only. It may not be sold as a single module.


ARM Nano

The new family of ATIM radio Modules operates in the ISM bands (169Mhz, 433Mhz and 868Mhz) and on the 868Mhz for SIGFOX.

This RF module is optimized for long range.
The radio communication is half-duplex, bidirectional and allows to establish point to point and multipoints connections, and to the Internet with SIGFOX compatibility.



With a same form-factor and a same control interface, the modules of the MM002-xx-EU family are interchangeable and allow communications on various radio technologies (local loop and long distance).
The MM002- EU-LS version includes SIGFOX technology for communications with this network.

Operating in the 868MHz unlicensed band, this module has a good interferers robustness and low power consumption.
It is the best solution for applications requiring long range, maximum battery lifetime and secure radio link.


RC 1682-SIG

The RC1682-SIG module is a SIGFOX Ready compact surface-mounted product that measures only 12.7 x 25.4 x 3.3 mm.
The module contains a communication controller with embedded SIGFOX protocol software and is pre-certified for operation under European regulations. Custom variants can be offered with custom functionalities.
• High sensitivity (best class) and selectivity, high blocking properties
• Completely shielded module 12.7 x 25.4 x 3.3 mm for SMD mounting
• Pin compatible with other modules from Radiocrafts
• 2.8 – 3.8 V supply voltage with ultra low power modes

TD Next


The TD1204 is the best compromise between ease of integration and costs.
1st SIGFOX module with GNSS and 3-axis accelerometer sensors for geolocation and tracking applications.
The TD1204 interfaces with most GNSS and SIGFOX antennas.
• Efficient & Powerful
• Easily adaptable to each specific business
• Low consumption
• Easy integration into a device (41.91mm x 12.7mm x 3.81mm)
• Short range function
• Packaged for mass production

TD Next


This is a compact state-of-the-art geolocation device with integrated 868MHz and GNSS antennas for a ready-to-package application.
Just connect a battery to your TD1205... and you’re done!
• Efficient & Powerful
• Integrated 868 MHz and GNSS antennas
• Easily adaptable to each specific business
• Low consumption for a long battery life
• Easy integration into a device (48mm x 30mm x 10.5mm)
• Short range function
• Packaged for mass production

TD Next


The simple low-end time-to-market AT-command SIGFOX modem that brings the highest performance at the lowest price.

This module is the best way to step easily into the SIGFOX world!

• Efficient & Powerful
• Low consumption
• Easy integration into a device (25.4mm x 12.7mm x 3.80mm)
• Short range function

TD Next


Because each customer is unique and each business has its own special features...
TD next gives you the ability to embed your own application into the TD1208.
The TD1208 is the most integrated and lowest-power engine for most battery-operated SIGFOX devices.

• Efficient & Powerful
• Easily adaptable to each specific business
• Low consumption
• Easy integration into a device (25.4mm x 12.7mm x 3.80mm)
• Short range function
• Packaged for mass production



The LE51-868 S is a high performance certified short range to long range module designed to cover the 863-870 MHz band working with the Telit Proprietary protocol and acting as a SIGFOX gateway.

EVK & Dev Kits

Descriptions provided by vendors

AXEL Elettronica

Smart Everything

SmartEverything is the core component developed to accelerate the “Internet of Things” eco- system.

It is an Arduino form factor IoT board, equipped with a multitude of factory bundled I/O ports and sensors and with the most energy-efficient wireless connectivity technology dedicated to all projects in the IoT and IoE fields.

the board features a simplified (Arduino IDE) but also a professional (Atmel Studio) programming environment, making the SmartEverything an ideal educational tool and, at the same time, the perfect tool to develop projects in technical and scientific labs.

More informations on SmartEverything website



The SIGFOX demonstrator is a ready to use system which provides connection to the SIGFOX network.
With 3 integrated sensors (GPS, accelerometer, temperature) this demonstrator allows to transmit and instantly view the radio frames on a dedicated web app

This demonstrator is particularly suitable for the validation of applications like sensor networks, environment, intelligent buildings, metering, security, or M2M.

More informations on Adeunis website


The AirBoard

The AirBoard is a wireless, modular and ultra low-power prototyping platform for the Internet of Things, designed to explore, hack and deploy your killer idea out in the field.

Forget about your sensors with the built-in battery and Power Management System.
The AirBoard is designed for ultra low-power applications, yet capable to drive long range wireless shields.
It offers an ultra-low power sleep mode with switchable radio for most efficient communication strategy.

More informations on The Airboard website


Live black USB

Device with USB output can be connected to the SIGFOX network thanks to Live Black USB.
It allows for a quick setup with multiple sensors.
It can be used as a backup channel in addition to other networks.

Connected to a computer like a Raspberry Pi, Live Black USB is made for rapid prototyping.

More informations on Connit website


Industrial Arduino is a flexible and low cost Sigfox communication device. It includes a low energy micro-controller (0,4uA standby) that users can program with the Arduino IDE.
Small size and a rugged enclosure allows to use it on industrial environment.
Ad hoc designed modules can be attached in order to use any sensor, communication or power supplies.

Thanks to the Arduino compatible micro-controller, you can program the firmware in order to develop the optimal functionality of the device. Use this module no only for prototyping but for long series production.


RC 1682-SIG DK

The RC1682-SIGFOX-DK is the Demonstration Kit for the compact SIGFOX module.
It consists of two Demonstration Boards with antennas and a USB interface. It is supported by the RCTools PC software for easy configuration and test.
Each Demonstration Kit is delivered with Platinum level SIGFOX subscription, which allows up to 140 uplink messages, and up to 4 downlink messages per day, for 1 year after the activation date.
Roaming is also included so that the Radiocrafts Demonstration Kits can be used in every place in Europe where a SIGFOX network is available.



The expansion board is for raspberry pi mainboard and allow to use the SIGFOX network. It is developped and made in France by SNOC and includes the following accessories :

• a box designed for table & rail DIN
• an antenna



Make prototypes with SIGFOX IoT technology and Arduino C language.

This new version of Akeru offers a better access to advanced features of the modem and a low power usage. Many applications have been developed with Akeru (weather station, bee hive monitoring, trackers, etc.).

Gives you the possibility to use the IoT SIGFOX technology as easy as sending data to a serial port or blinking a LED with Arduino.

More informations on Available on

TD Next

TD1208 EVK

Evaluate the SIGFOX technology and our modules by sending simple AT commands!
Available for TD1207, TD1208, TD1508, TD1204, TD1205
Included: 1 EVB with a TD module, 1 antenna, 1 FDTI cable, 1 year subscription to the SIGFOX network, 1 year access to TD Next's developer backend

TST Sistemas

Smart expansion board

Smart SIGFOX expansion board which will be used for project prototyping thanks to the easy operation, programming and its powerful API available.
It allows a direct connectivity to the SIGFOX network and provides digital interfaces that control any external sensor.



The Evaluation Kit based on Telit modules provides a robust, future-proof and exible environment to streamline all application development based on Télit modules.
It include a full SIGFOX subscription.

API & Callbacks

Once a device sends a message, there are 3 ways to fetch & use the data :

  • Web interface on
  • Callback mechanism


To access the API, you need to set up your access first.
To do so, go to the Group section on .
In the sidebar, click on API access & then click New in the top-right corner.
You should now see your credentials, and a link to the API documentation relevant to your access rights

Using the API you can :

  • Retrieve the list of devices associated to a device type
  • Retrieve the messages of a given device
  • Get metrics about a device's messages


You can subscribe to receive an HTTP callback for every message received & processed by the SIGFOX backend.
The following data will be sent to your application :

Data sent in the callback body
One callback is called per emitted message.
You can optionally subscribe to receive a callback each time a station receives your message. Deduplication will then occur on your side.

You can choose to receive the callback using a GET or POST HTTP request.
Variable Meaning Unit
device Device unique ID
time Timestamp of the message seconds
data The data payload you sent
rssi Received Signal Strength Intensity on the base station that received your message. dBm

To avoid side effects, you should send an HTTP 200 response as soon as the callback is received on your side.
If the SIGFOX backend receives an error status, it assumes that the message wasn't properly received, and send a retry shortly after. This will be seen as another message by your system.

An example of a quick implementation of a callback handler is available here.


SIGFOX coverage, as of January 2016
You can check the precise coverage on, with a zoomable map.
Contact us for details & questions about current coverage, and stay tuned for future announcements !

Nationwide coverage






The Netherlands

The United Kingdom (10 of the largest cities)

On-going rollout




Czech Republic





New Zealand