Lack of knowledge about pelvic floor and poor activity of its muscles are linked to a high prevalence of pelvic floor dysfunctions which negatively affect the quality of life of people who suffer from them. The few sensory mechanisms that pelvic floor muscles have to inform the brain of their situation can make it difficult to perform voluntary contractions or identify risk factors. Currently, there is no consensus to improve this proprioception. This work introduces the development of a novel intravaginal device, connected to a mobile data acquisition system, able to discern the correct contraction of the pelvic floor muscles versus contraction of adjacent muscles or abdominal thrust efforts.