An electrically-powered, home-use device intended to be inserted into the anus to visualize/measure the consciously-controlled contraction force of the pelvic floor muscles, to facilitate the self-training of pelvic floor exercises for improved control of bowel function in patients affected by anal/faecal incontinence and/or constipation; it is not a muscle exerciser. It may wirelessly transmit data to a smartphone app for display/recording. This is a single-patient, reusable device.