This research topic aims to explore new routes for developing environmental sensors to meet the needs for increasing the spatial and temporal resolution of measurements in-situ or in-natura. To do this, we are trying to exploit the advanced developments of components off-the-shelf (COTS) for consumer electronics (smartphone, IoT, etc.) for in-situ environmental measurement, relying on rapid prototyping methods ( 3D printing, xurography), and on open-source and open-hardware approaches to promote the adoption and replication of the sensors developed.