The project / Carbosense establishes a uniquely dense network of approximately 300 DL-LP8P CO₂ sensors distributed over Switzerland with a even denser cluster over the city of Zurich to provide near real-time information on man-made emissions and CO₂ uptake by the biosphere.

The devices are equipped with low-cost, battery-powered sensors and use Swisscom's new Low Power Network (LPN) for data transmission.

The project was initiated and is driven by Decentlab, Empa, Swisscom and SDSC.


The ability to implement long-term greenhouse gas policies and manage them effectively requires consistent, reliable, and timely information on CO₂ emissions. Furthermore, CO₂ is an excellent proxy for air pollution assessment and model validation. Carbosense strives to overcome the fact that dense LPN sensing is yet largely unexploited in atmospheric monitoring.


Low-cost sensors for CO2 monitoring: calibration, characterization and assessment
Presentation by Lukas Emmenegger at 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2017)

Report about the project in Einstein on Swiss Television SRF 1

Article in EmpaQuarterly

Carbosense and our CO2 sensor with LoRaWAN on swiss television news SRF Tagesschau




Temperature readings over the last 24 hours averaged per hour. Access to public dashboard