Doppler can meet routine examination requirement of obstetricians,
midwives, and pregnant women. It is a high performance model with FHR digital LCD
display. It has three heart rate processing modes: real-time FHR display mode, averaged
FHR display mode and manual mode. Both of the models have audio output, and can
connect with earphone or recorder with audio input. It has a slim, power saving
and interchangeable ultrasound probe.