ENVEA delivers its 10,000th Cairsens® micro-sensor
January 19, 2022
Since 01 January 2023, ENVEA is an associate member of the German Asphalt Association. With its products and solutions for moisture measurement, material flow monitoring, level measurement, filter performance monitoring, emission monitoring and ambient air monitoring, ENVEA complements the other members in the association and offers real added value for asphalt mixing plant operators.

ENVEA’s measurement technology can save energy in asphalt mixing plants and thus reduce costs. In addition, process flows can be optimised, downtimes can be avoided and critical environmental influences can be detected in time.

The robust and durable sensors and monitoring solutions are ideally designed for the harsh conditions in asphalt plants.

Cairsens® micro-sensors allow to measure specific pollutants with results comparable to reference methods. They are used worldwide by our customers who are looking for new technologies in air quality monitoring.

The 10,000th Cairsens® micro-sensor dedicated to H2S measurement has just left ENVEA’s factory in the Paris region and is now on its way to Guadeloupe (France), to join the Sargassum algae monitoring network of Gwad’air, the local air quality surveillance association.

The monitoring of the emissions resulting from the decomposition of the sargassum algae by ENVEA’s micro-sensors is not recent. Measurements of H2S concentrations carried out at the national level by the Air Quality Monitoring Association in the vicinity of natural sources such as the degradation of green algae (west coast of France) or sargassum algae (Martinique, Guyana) have been in place for several years.

Back in 2015, Madininair had already been appointed by local authorities in Martinique to set up a monitoring network of hydrogen sulfide and ammonia concentrations in urbanized areas impacted by the stranding of these algae. This pioneer network allows a real time and continuous monitoring of H2S and NH3 concentrations.

Indeed, these networks of measurement of the emanations of the algae in decomposition were already the subject of some publications on our Internet site. Here they are for more information:

Beaching of Sargassum in Guadeloupe: a network of Cairnet® micro-sensors

Guadeloupe (France) | Cairnet®
Following the update of health recommendations and the management measures of the High Council of Public Health (HCSP, France), the Regional Health Agency and GWAD’AIR (Approved Association for the Monitoring of Air Quality) have deployed a network to measure hydrogen sulfide (H2S) and ammonia (NH3). The daily data collected are available on the Gwad’air website:

Consult here the last available cartography

French President Macron inaugurates the Cairnet® network in Guadeloupe (France)

28 Sept 2018 | Cairnet®
The new installed network of 24 Cairnet stations to measure the Sargassum algae gas emanations provided by ENVEA Cairpol and installed by Gwad’air end of August has been inaugurated by the French President Emmanuel Macron during his trip to the Antilles this Friday, September 28th.

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