Cabinet monitoring system

The invention relates to a cabinet monitoring system (10), which is designed for monitoring the cabinet itself relevant functions including temperature regulation and a central monitoring unit and at least one so via a data transmission link (DU) standing or can be brought into data transmission connection, a respective function or function group of similar functions associated decentralized unit having (2 to 7). A with relatively little effort variable erecting cabinet monitoring device is made possible in that the central monitoring unit is provided as a main unit (ME) with at least one standardized interface (1.1) for wireless data transmission, that the data transmission link (DT) at least includes a wireless transmission link and the at least one decentralized unit (2 to 7) also having at least one of the interface (1.1) of the main unit (ME) adapted standardized additional interface is provided (2.1 to 7.2) for the wireless transmission (Fig. 1).