Sell fetal doppler

fetal doppler
pocke1, hand-hold, use conveniently;
Cassette holder for sensor, safety in carry, frame in bend, esily for
operation, also comfortable for pregnantwoman;
Value or curve in LCD display;
With data and time or timer function;
Ultrasound sensor can be reptaced;
With inner loudhailer;
Better power management function;
With video output port;
Can monitor pregnant woman's SPO2 and pulse(in option) ;
DSP technology, work frequency in 1MHz, ultrasound dosage is far less than
safe standard of monitoring fetal, is more satety; single lithium battery, with
battery state indication