... Support 2MHz,3MHz,4MHz,5MHz,8MHz probes Fetal Heart Rate Doppler series is designed to meet routine examination requirements for pregnant ... women in hospital, clinic, home etc.Sonoline B Pocket Fetal Doppler is a hand-held obstetrical unit, which can be used ... , FHR calculating unit, LCD display control unit etc.Sonoline B Pocket Fetal Doppler is a high performance model with (fetal heart rate ...