A sensor of a maternal and fetal monitoring device is disclosed. The sensor includes a signal processor configured to transmit ultrasound beam on to a portion of a subject. Reflected ultrasound signals are received from the subject. These reflected ultrasound signals are processed to generate one or more of processed fetal information and processed maternal information. The sensor also includes a wireless module configured to communicate with a remote ultrasound processing system. The wireless module streams the processed fetal information and the processed maternal information to be stored in the remote processing subsystem.
