Real estate monitoring system, comprising: a monitoring module, which is adapted to the real estate monitoring capacities and includes at least one sensor, which is installed within the premises; wherein, the monitoring module, is configured to respond to changes in physical parameters that are recorded by the sensor; furthermore, an identification tag with a memory, a microprocessor and a transmitter for the wireless communication system, and a battery, whereby a unique identification tag number is stored in the memory of the identification tag; and the monitoring module is communicatively linked to the database in which data representing the unique tag identification number and its associated set of authorisations to change the operating mode of the monitoring system are stored; the tag is adapted to send a cyclic signal transmission representing the unique tag identification number when the transmitter and the receiver of the wireless communication system are switched on; the monitoring module is equipped with a receiver for the wireless communication system and a keyboard for selecting the operating mode of the real estate monitoring system, communicatively linked within a monitoring module, characterized in that the identification tag is fitted with an accelerometer suitable for measuring accelerations; the tag is adapted to switch off the transmitter of the wireless communication system when the accelerometer signal corresponds to the acceleration signals occurring while the tag is at rest, and to switch on the transmitter of the wireless communication system when the accelerometer signal corresponds to the acceleration signals occurring when the tag is in motion; and the monitoring module is adapted to verify the correctness of the unique identification number received, to check in the database the authorisations assigned to the unique identification number and to generate a signal to change the operating mode of the real estate monitoring system in response to the receipt of a signal representing the unique identification number of the tag by receiver of the monitoring module, to which the required authorisations to change the operating mode of the monitoring system have been assigned and in response to a signal representing pressing the buttor on the keyboard to select the operating mode of the real estate monitoring system. a monitoring module, which is adapted to the real estate monitoring capacities and includes at least one sensor, which is installed within the premises; wherein, the monitoring module, is configured to respond to changes in physical parameters that are recorded by the sensor; furthermore, an identification tag with a memory, a microprocessor and a transmitter for the wireless communication system, and a battery, whereby a unique identification tag number is stored in the memory of the identification tag; and the monitoring module is communicatively linked to the database in which data representing the unique tag identification number and its associated set of authorisations to change the operating mode of the monitoring system are stored; the tag is adapted to send a cyclic signal transmission representing the unique tag identification number when the transmitter and the receiver of the wireless communication system are switched on; the monitoring module is equipped with a receiver for the wireless communication system and a keyboard for selecting the operating mode of the real estate monitoring system, communicatively linked within a monitoring module, characterized in that the identification tag is fitted with an accelerometer suitable for measuring accelerations; the tag is adapted to switch off the transmitter of the wireless communication system when the accelerometer signal corresponds to the acceleration signals occurring while the tag is at rest, and to switch on the transmitter of the wireless communication system when the accelerometer signal corresponds to the acceleration signals occurring when the tag is in motion; and the monitoring module is adapted to verify the correctness of the unique identification number received, to check in the database the authorisations assigned to the unique identification number and to generate a signal to change the operating mode of the real estate monitoring system in response to the receipt of a signal representing the unique identification number of the tag by receiver of the monitoring module, to which the required authorisations to change the operating mode of the monitoring system have been assigned and in response to a signal representing pressing the buttor on the keyboard to select the operating mode of the real estate monitoring system.