How The Babycom Home Doppler Fetal Heartbeat Monitor Works 

Babycom Home Doppler Fetal Heartbeat Monitor is based on the Doppler shift principle. The tip of the sensitive Babycom transducer contains two piezoelectric crystals. One crystal transmits very low ultrasonic waves, the other detects these reflected waves.

As the ultrasound waves reach moving tissue, such as the fetal heart, they bounce back and their pitch shifts slightly. This change in pitch is the Doppler shift. Babycom Home Doppler Fetal Heartbeat Monitor’s wide ultrasonic beam angle and algorithmic processing convert the shifted ultrasonic waves into the audible sound of the fetal heartbeat. (Since the sound waves do not travel through the air easily, you’ll apply the gel that's included with the Babycom between the transducer and your abdomen to conduct the sound waves.)

About Diagnostic Ultrasound

Ultrasound in pregnancy has been used as a diagnostic tool for more than 25 years. Ultrasound has long been considered one of the safest means available for obtaining information about the unborn baby. Global studies and tests conducted by various manufacturers, government agencies, and research institutions have not indicated or revealed any adverse side effects of diagnostic ultrasound. 

What Will My Baby's Fetal Heartbeat Sound Like?

The fetal heartbeat sounds like the hoof beats of a galloping horse. A rushing wind-like sound is audible from the placenta. The fetal heart rate usually ranges between 140 to 160 beats per minute, approximately twice the maternal rate. The mother's heart rate can be checked by taking the pulse.