Could be the FetalPlus at-home fetal doppler safe to work with as much as I want, like each day or multiple moments a day? The Eufy Spaceview Pro Baby Monitor was one of several much easier baby monitors to build because it doesn't involve much so far as setup goes. https://arthurwxuqk.digitollblog.com/32526705/a-simple-key-for-best-baby-monitor-3-receivers-audiomack-unveiled