A pluggable module is provided which is configured to be connected into a pluggable port of a radio base station. The pluggable module is associated with at least one sensor for collecting external sensor data. The pluggable module comprises at least one communication interface, a processor, and a memory for storing software comprising computer program code which, when run in the processor, causes the pluggable module to collect pre-specified external sensor data from at least one sensor associated with the pluggable module and communicate the collected external sensor data to a centralized server via the at least one communication interface.