Systems and methods for environmental monitoring of a premises. The system includes at least one sensor unit including at least one environmental sensor module for detecting at least one of the environmental variables of the premises. The system includes a base unit located on the premises, which is configured to: detect at least one of the sensor units as being in proximity of the base unit using a short range communication protocol, obtains an identifier of at least one of the sensor units, from that sensor unit, using the short range communication protocol, register, in memory of the base unit, at least one of the sensor units using the identifier of that sensor unit obtained by the base unit from the short range communication protocol, and receive, from at least one of the sensor units, data related to at least one of the environmental variables detected by that sensor unit.