NatureSpirit Sonoline-B Handheld Fetal Doppler from Walgreens

For a woman at least 12 weeks pregnant to safely check and listen to the fetal heart beat. NatureSpirit sonoline-B handheld fetal doppler is designed to adopt doppler principles, with ultralow and ultrasound output intensity and high sensitivity ultrasound transducer.


  • Portable and very compactly designed
  • Large LCD display with backlight, built-in speaker with volume control
  • Can measure and display fetal heart rate in real-time, average mode
  • High sensitivity waterproof interchangeable probe support 2 MHz, 3 MHz, 4 MHz and 8 MHz
  • Battery status and low battery indication
  • Automatic power-off
  • Ultrasound frequency: 2MHz in continual; Intensity: <10 mW/cm2
  • Fetal Heart Rate measurement range: 50-120 bpm
  • Fetal Heart Rate measurement resolution: 1 bpm
  • Small in size
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