1,split-type design:seperate design between host and probe; 2,power with dry batteries AAA(1.5V*4);

1,split-type design:seperate design between host and probe;

2,power with dry batteries AAA(1.5V*4);

3,the probe taking the principle of fetal ultrasound to collect the fetal heartbeat signals of fetus; 4,can transmit the fetal heart signal to monitoring centre system with a headphone socket; 5,Acquire the fetal heart signals from fetus,broadcast the fetal heart sound through headphone or host embedded rock;

6,built-in loudspeaker;

7,LCD dispaly FHR.