A method characterized in that the method is for monitoring facilities by sensors according to different loT protocols, wherein the method comprises: obtaining, at a user cloud platform configured to provide user interfaces to one or more user devices, information identifying the sensors connected to sensor cloud platforms and information identifying installation locations of the sensors; determining, at the user cloud platform, the sensor cloud platforms that support loT protocols of the sensors based on the obtained information; adding, at the user cloud platform, user interface elements representing each of the sensors to at least one monitoring toolset to be provided on the user interfaces; causing, at the user cloud platform, in response to a user interface action on a user interface element of the monitoring toolset: - to activate data transfer from the sensor cloud platform to the user cloud platform in response to the user interface action and to receive sensor data from the sensor cloud platform connected to the sensor by an loT protocol supported by the sensor associated with the user interface element; and causing, at the user cloud platform, in response to a further user interface action on the user interface element or an indicator of the user interface element: - to de-activate the data transfer from the sensor cloud platform to the user cloud platform and to stop reception of sensor data from the sensor cloud platform connected to the sensor. obtaining, at a user cloud platform configured to provide user interfaces to one or more user devices, information identifying the sensors connected to sensor cloud platforms and information identifying installation locations of the sensors; determining, at the user cloud platform, the sensor cloud platforms that support loT protocols of the sensors based on the obtained information; adding, at the user cloud platform, user interface elements representing each of the sensors to at least one monitoring toolset to be provided on the user interfaces; causing, at the user cloud platform, in response to a user interface action on a user interface element of the monitoring toolset: - to activate data transfer from the sensor cloud platform to the user cloud platform in response to the user interface action and to receive sensor data from the sensor cloud platform connected to the sensor by an loT protocol supported by the sensor associated with the user interface element; and - to activate data transfer from the sensor cloud platform to the user cloud platform in response to the user interface action and to receive sensor data from the sensor cloud platform connected to the sensor by an loT protocol supported by the sensor associated with the user interface element; and causing, at the user cloud platform, in response to a further user interface action on the user interface element or an indicator of the user interface element: - to de-activate the data transfer from the sensor cloud platform to the user cloud platform and to stop reception of sensor data from the sensor cloud platform connected to the sensor. - to de-activate the data transfer from the sensor cloud platform to the user cloud platform and to stop reception of sensor data from the sensor cloud platform connected to the sensor.