Portable Fetal Doppler Fetal Doppler is designed to meet routine examination requirements for pregnant women at home. Features: 1.Home use design,very light and simple 2.curve moniter 3.the samp FHR algorithm with the fetal monitor 4. High sensitive 2.5MHz transducer 5. rechargeable battery acceptable. 6.Automatic FHR detection or artificial FHR accounting swithable 7.Earphone Port 8. Automatic power-off Options:PC connection capablity