handle fetal doppler with telephone function

Pocket Fetal Doppler mainly applies to detect the fetal heartbeat rate from the twelfth week;
LCD can display FHR, synchronous FHR signal, battery indicator, volume of sound and alarm indicator accurately;
Built-in rechargeable battery can work continuously more than 4 hours;
Modem inside can dial up and transmit FHR signal to the monitor center through telephone line to carry out remote monitoring;
Blue backlight LCD display for use conveniently at night;
Automatic power off ( one minute), self-detect function and alarm function when FHR is out of the normal range or battery power is in shortage;
only 300g; can be carried conveniently with a gallus;
Built-in speaker and collocated with earphone jack;
2.0 MHz probe and easy to replace.
handle fetal doppler with telephone function