Calculating FHR with the same DSP techniques as in Fetal Heate monitor, and ensure the FHR accuracy and reliably.

High sensitive transducer, Low ultrasound power , safer to the fetal.

Friendly man-machine interface, easy  to use.

Built-in speaker.

3AA batteries(dry or recharegeable) powered status indicator.

Battery management function :in the normally working state, it will power off automatically if no signal after 1 minute.