This work presents a proposal of implementation of an automatic monitoring system for environments who does experimentation and manipulation of ionizing radioactive particles, having as a base scenario the structures off nuclear energy research laboratories through sensors coupled to integrated microprocessor circuit boards, to carry out the communication between the sensors a Wireless Sensor Network with star topology was raised by resorting in the Internet of Things paradigm. For the network security, the concept of layered access level was applied, specifically, access level according to the criticality off the process and environment whose the sensors are exposed to.