1) Obstetrics device 
The device used to track a fetus's heartbeat and a woman's uterine contractions during labour.
Device used to listen to and record the heartbeat of the fetus; normal range is 110160 beats per minute
Device used before or during labor to listen to and to record the fetal heartbeat. Can be external monitoring (through maternal abdomen) or internal monitoring (through maternal vagina) of the baby inside the uterus.
Device used before or during labor to listen to and to record the fetal heartbeat. Can be external monitoring (through maternal abdomen) or internal monitoring (through maternal vagina) of the baby inside the uterus.