This report contributes to the ArtEmis project, a multidisciplinary initiative designed to enhance earthquake forecasting through sensor technology. By utilizing a sensor unit that measures radon levels—a potential precursor to seismic activity—the project seeks to develop predictive capabilities. Central to this report is the evaluation and enhancement of the acquisition electronics critical to sensor functionality. The study involves testing and monitoring of the initial set of sensor systems deployed across various locations in Southern Europe, with specific attention given to electronic components like the gateway and its connectivity options. The findings reveal that the D-Link DWR-932 router, originally used for network connectivity, is unsuitable due to poor performance. Consequently, this report recommends replacing the D-Link router with more reliable alternatives such as the SIM7600G-H modem and the Rut241 router, either individually or in combination, to enhance the system’s reliability and overall performance.