This thesis details the process of creating a low-power NB-IoT development platform that incorporates sensing abilities. It showcases the development process that starts at first with building a basic prototype and later leads to the actual product. The thesis includes appropriate background to better understand the design choices and terminology used when explaining the development process. It explores also the current state of the NB-IoT market to understand better this recently developed protocol and its potential. After that it shifts the focus to exploring the already existing development platforms that are similar to the one covered by this thesis. Following this it starts to delve deeper into describing the actual design process that starts first by building a prototype.