Before revision: Types alt=Fetal Heart Rate and Activity Monitor - Baby Doppler |Fetal Heart Rate and Activity Monitor - Baby Doppler Dopplers for home or hospital use differ in the following ways: Manufacturer: popular manufacturers are Baby Doppler, Sonoline, Ultrasound Technologies, Newman Medical, Nicolet (purchased by Natus), Arjo-Huntleigh, and Summit Doppler (now Cooper Surgical).
After revision: Neeva Baby,Types alt=Fetal Heart Rate and Activity Monitor - Baby Doppler |Fetal Heart Rate and Activity Monitor - Baby Doppler Dopplers for home or hospital use differ in the following ways: Manufacturer: popular manufacturers are Baby Doppler, Sonoline, Ultrasound Technologies, Newman Medical, Nicolet (purchased by Natus), Arjo-Huntleigh, and Summit Doppler (now Cooper Surgical).