The present disclosure relates to providing a continuous, autonomous monitoring system of environmental parameters, harmful gases and greenhouse gases in animal stables. A network of internet-of-things (IoT) sensors can be installed in a stable that produce alarm signals in case of danger or if predetermined threshold values are exceeded. The sensors work continuously and communicate through different wireless protocols with a dedicated cloud platform. The cloud platform stores the values received by the various sensor units and transmitted via dedicated monitoring devices and elaborates them applying data analysis processes.