- Used - Comes from smoke-free home Baby Doppler’s baby heart rate detector features: A back-lit LCD screen to easily see the bpm (beats per minute), Intelligent Noise Reduction and MedHD® Speakers for the optimal sound A High Accuracy 3 MHz Sonotech® Probe that is sensitive enough to be used throughout your pregnancy. Baby Doppler Disclaimer: Fetal Dopplers used at home should not replace regular doctor visits. The products on this page are not intended to treat, cure, prevent or diagnose any medical condition nor to derive at any medical conclusion based on its readings. The use of Baby Doppler is simply to hear a baby's heartbeat for an enhanced bonding experience and pregnancy journey. Contact your doctor or health care professional if you are concerned about the health of your baby. The heart rate value on the screen is calculated from the audible sound heard from the device. The heart rate may not be an accurate indication of the actual fetal heartbeat. Readings on any fetal doppler should not be relied upon for medical purposes. If you have any medical conditions or concerns, please consult with a professional health care practitioner before using this product.