Fetal doppler applicable to hospital,clinic and home

"The device is used to detect fetal heart rate, safe and easy to use at home. Lightweight and easy to carry. It can be used in hospital, clinic and home for daily self-examination by pregnant women. It contains components of ultrasonic signal transmitter and receiver, analog signal processing unit, FHR calculation unit, LCD screen controller,Safe and easy-to-use fetal heartbeat screening device to ensure the health of the fetus"