Safety of fetal heart rate monitor and precautions for use Safety aspect Fetal heart rate monitor is a medical device used to monitor fetal heartbeat, and its safety is of utmost importance. Before using this device, you need to understand its safety features. First of all, the fetal heart rate monitor is a non-invasive monitoring device that does no harm to the mother and fetus. At the same time, the use of this equipment needs to comply with certain medical regulations and standards to ensure correct operation and avoid unnecessary harm to the fetus. Secondly, when using a fetal heart rate monitor, you need to obtain guidance and supervision from a doctor. Doctors need to make monitoring plans based on the specific conditions of pregnancy, mother and fetus.