Fetal Heart Rate Doppler ( YK-90A )

? Advanced Digital Siganal Processing(DSP) technical applied for real-time calculation of FHR
? 2.4" TFT display, can be used in any illumination conditions
? High sensitivity probe with 2.0MHz in continuous wave
? Accurate and reliable FHR detection with clear sound                                                                                                                    

? Ergonomic design, portable and convenient
? Built-in rechargeable Li-ion battery and battery capacity indicator
? Date and time function      
? Long time continuous use up to 4 hours                                                                                                                      

? Auto power off for energy saving
? Built-in speaker and ear-phone output
? Low ultrasound power, safe to the fetus