Purpose: Used to detect and monitor the fetal heartbeat during pregnancy.
Technology: Uses Doppler ultrasound to pick up fetal heart movement and convert it into an audible sound.
Gestational Use: Can typically detect heartbeat from 10–12 weeks of pregnancy onward.
Design:
Handheld device with a probe.
May include digital display of heart rate.
Use Case: Commonly used by obstetricians, midwives, and sometimes at home by expectant mothers (with guidance).