The BF Doppler ultrasound fetal heart rate (FHR) detector is widely used in hospitals and at home to monitor fetal heart rate. Uses advanced technology. Fetal heart sounds are clear, loud, distinct.


  • The pocket model BF-500+ is very light (only 250 g).
  • Built-in rechargeable battery can work more than 8 hours.
  • The highly sensitive sensor can be used to determine blood flow and heart rate. The sensor can be conveniently replaced.
  • Doppler output jack suitable for headphone or signal recording

Delivery options:

  • BF-500+: detects heart rate and displays it on the LCD screen
  • BF-500++: not only determines the heart rate, but also displays it on the blue backlit LCD screen