... backlight Support 2MHz,3MHz,4MHz,5MHz,8MHz probes Fetal Heart Rate Doppler series is designed to ... women in hospital, clinic, home etc.Pocket Fetal Doppler is a hand-held obstetrical unit, which ... color LCD of high resolution to display the fetal heartbeat waveform, and figure out the FHR to help ... , bar graph and heartbeat waveform color screen displayAlarming in red when the fetal heart rate range is ...