SonoTrax Baby Doppler Basic with 3MHz Probe

Availability: Only 8 left


Quick Overview

  • Bright LCD screen provides an easy way to view results
  • Can view readings as a real-time heart rate value, averaged, or through custom parameters.
  • Up to 13 hours of continuous monitoring
  • Includes a headphone output for private listening
  • 1 Year Warranty

Note: If one or more of the items you purchase requires a prescription, please send us the documentation as soon as possible. (more info)



The SonoTrax Fetal Doppler provides a simple, easy to use Ultrasonic Doppler that allows mothers and health care professionals to retrieve a fetal heart rate (FHR) and listen to the sound of the heart beat. This Fetal Doppler provides different easy-to-use modes including a Real-time FHR display, Averaged FHR, and a manual mode that allows the user to view a fetal heart rate for a 5 or 10 heart beat period, giving you a calculated measurement with a press of a button.

This Fetal Doppler provides basic features with an LCD screen displaying the FHR, battery indicator, probe type, and different display modes. This waterproof probe provides better ultrasounds of fetal heart beat and allows use in water up to 3 feet for up to 5 hours. The Doppler unit, however, cannot be immerged in water..

The Low Battery indicator provides a full battery icon that indicates full battery levels and decreases slowly after so many uses. A visual and auditory warning will alarm when the battery needs to be changed and then proceeds to automatic shut off.


  • Ultrasonic Doppler with LCD Display and 3MHz probe(Waterproof)
  • Fetal Doppler is a handheld unit which allows any user to comfortably hold the unit while checking for the fetal heart beat
  • Different modes provide different intervals and time measurements for the FHR
  • Battery allows 13 hours of continuous use or about a little less than a thousand 1 minute sessions
  • Auto Shut Off after 1 minute of no operation or no signal
  • Adjustable Volume and/or Listen to the Doppler through Headphones
Package Contents
  • 1x SonoTrax Fetal Doppler Basic (FDA Approved)
  • 1x 3MHz Waterproof Probe
  • 1x Carrying Case with zipper and handle
  • 1x User Manual

Extended Specifications

FHR Range: 50BPM - 210BPM 
Resolution: 1BPM 
Accuracy: +/-3BPM 
Audio Sampling Frequency: 4KHz/8KHz 
Audio Output Power 0.5W
  Temperature: 40°F - 100°F (4°C- 40°C) 
Humidity: 80% or less 
Atmospheric Pressure: 860hPa – 1060hPa 
Weight: 0.63lbs (0.28kg) 
Power source: 9V battery
1-year limited warranty


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