Heat stress and thermal comfort indoor and outdoor – permanent

For the real-time assessment of the health and safety of workers in conditions of high thermal stress, portable systems are not normally equipped with all the features required for long-term permanent monitoring. LSI Lastem has developed a system suitable for large industrial plants where it is necessary to permanently monitor the conditions of instantaneous thermal stress in a large number of positions. The system consists of a number of Satellite radio modules, for the measurement of air temperature, relative humidity, radiant temperature, wet temperature. They calculate a number of heat stress indices, including the WBGT according to the ISO7243 standard. Each module transmits data via radio to a Master data log-ger which sends information in real time to a control room, produces alarms via sms, e-mail, connects to local alarm systems, as well as sends the data to Scada systems via Modbus RTU / TCP protocol.

Heat stress and thermal comfort indoor and outdoor - permanent


  • According to ISO7243 and ISO7726 standard;
  • Multi-position indoor monitoring modules (Temperature, Globe temperature, Wet Temperature) and optional outdoor sensors (Air temperature, RH%, Solar Radiation, Wind speed, etc.);
  • WBGT index real time calculation according to ISO7243;
  • Network of monitoring modules connected by radio to Master data logger;
  • Permanent and real-time system;
  • Made to stand in severe environments;
  • Real-time dashboard in control room via M QTT broker server;
  • SMS and e-mail alarms;
  • Electrical outputs for local alarm devices.
documents LSI Lastem

Heat stress and thermal comfort indoor and outdoor - permanent


Heat stress and thermal comfort indoor and outdoor - permanent

Suitable Products


Data Loggers

Range of data loggers for enviornmental applications for fix/portable, outdoor/indoor uses. Wide number and type of inputs. Low power consumption

Sensori per misure meteorologiche

Meteorological sensors

Range of sensors for the measurement of the most typical meteorological quaintities. Connection to LSI LASTEM data loggers or third part systems

Sensori per misure in ambienti indoor

Indoor environment sensors

Range of sensors to measure physical and chemicals quantities in the thermal environments, environmental quality and air quality applications in confined spaces



Range of PC programs for the data management, data display, data reporting, data communication and special applicative solutions for environmental calculation

Valeria Menichini

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