IoT Protocols – Sigfox


The idea for Sigfox is that for many M2M applications that run on a small battery and only require low levels of data transfer, then WiFi’s range is too short while cellular is too expensive and also consumes too much power.

Sigfox uses a technology called Ultra Narrow Band (UNB) and is only designed to handle low data-transfer speeds of 10 to 1,000 bits per second.

It consumes only 50 microwatts compared to 5000 microwatts for cellular communication, or can deliver a typical stand-by time 20 years with a 2.5Ah battery while it is only 0.2 years for cellular.

Already deployed in millions of connected objects (1), the network is currently being rolled out in major cities across Australia and New Zealand, and is active in 24 countries across the globe. (2)

The network offers a robust, power-efficient and scalable network that can communicate with millions of battery-operated devices across areas of several square kilometers, making it suitable for various M2M applications that are expected to include smart meters, patient monitors, security devices, street lighting and environmental sensors.

  • Standard: Sigfox
  • Frequency: 900MHz
  • Range: 30-50km (rural environments), 3-10km (urban environments)
  • Data Rates: 10-1000bps

(1) Over 7 million active connections as of 2016

(2) Correct as of 22nd September 2016.

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