-This research presents the architecture of a low-cost environmental technology platform for in situ monitoring fire risk characteristics of the Maiandeua Island at Amazonian, during the year 2013. This isle is a case study of the anthropized forest area, whose goal is to characterize the climatic behavior with environmental variables of temperature and humidity, all to identify environmental impacts on human health and biodiversity of the forest. The BRASSEN (Brasil System Sensor) platform contains an embedded expert system to detect the risk or without risk (safety) of fire at inhabited forest environments. The results of empirical experiments with this platform are provided. The period of highest understorey fire risk occurs between the months of June and November. Therefore, this work considers a novel study in IN-SITU (local) technologies in inhabited forest areas.