The FDA verified there isn't any recognized hazards of using an at-home fetal doppler because ultrasound engineering does not use ionizing radiation. Even with this, there are several precautions to be aware of about the use of those equipment, namely that this is not a replacement for normal Medical doctors https://cheap-fetal-doppler13344.theideasblog.com/17437294/the-fact-about-how-often-is-it-safe-to-use-a-fetal-doppler-that-no-one-is-suggesting