Increasing extreme heat conditions caused by Global Warning require to carefully limit the exposure and the metabolic activity of all the people, to avoid serious problems to their health.
With the worsening of this situation in wider areas of the globe, the consequences of thermal stress affect a larger number of subjects, in first place the most fragile categories of the population, such as the elder and sick people, but also the outdoor workers, whose metabolic activities and clothing types must be consistent with the risk of thermal stress.
To keep potential thermal stress under control, the traditional practice of short-term monitoring, to provide risk analysis, is no longer sufficient.
The new paradigm for outdoor workers health and safety control must be the continuous monitoring of the environmental conditions and the setting up of real-time warning systems as soon as it is necessary to limit the exposure and / or the metabolic activity.
For more than 40 years LSI LASTEM has been designing and manufacturing microclimatic systems for indoor monitoring of thermal environments and has, in its catalog, a wide range of instruments to define the best-known indices for all thermal environments: hot, cold and moderate.
Merging the features of both weather and microclimatic stations has been, therefore, natural for the LSI LASTEM engineers.
The range of LSI LASTEM weather stations has consequently been enriched with two new models.
A fixed station for continuous measurements, and a portable one for short-medium periods.
Both models can perform the verification of heat stress conditions while calculating the best-known heat stress indices (WBGT-ISO7243, PHS-ISO7933, Heat Index, Humidex) and defining the limits for each subject, set according to their degree of acclimatization, metabolic activity and clothing.
Moreover, they can check the distance between the current situation and the defined limit, providing local alarms (activated by electrical outputs) or remote alarms, via SMS, email messages, and data to MQTT brokers. Last, but not least, they can send data to remote FTP servers from where they can be downloaded and analyzed through specific programs. All above supported by sensors suitable for measurements in extremely severe environments and designed according to the most stringent standards.