Upgraded version 3.0Mhz！！！
* The pocket fetal doppler detector is a hand-held obstetrical unit, which is applicable to clinic and home for daily self-check by pregnant women. * It contains components of an ultrasonic signal transmitter and receiver, an analog signal processing unit, FHR calculating unit, 2 screens optional, etc. * Calculating FHR with DSP techniques as used in the fetal heart monitor, ensure the FHR accuracy and reliability.
Advantages of fetal doppler:
1）3.0 Mhz Waterproof probe High sensitivity of the probe, 12~16weeks can hear fetal heartbeat . 2）LCD digital screen Light screen , the digital display is more clearer . 3) Two model shows Press the left button , switch two model shows . 4）No radiation After tested , Seldom no radiation . 5）Turn off automatically No operation automatically turn down within 60S.
Parameters of fetal doppler :
Probe frequency：3.0 MHz plusmn10% Error range：plusmn 2bpm Rate display range：30-240bpm Validity period：5 years Size：130mm (L)*100mm（W) *36mm(H) weight：250g Battery：2*AA ( battery without )
Q: When can use this pocket fetal doppler detector hear baby heartbeat ? A: Some Pregnant woman can heard baby hearbeat in 12weeks , most of Pregnant can heard in 16 weeks . Q: What is Normal fetal heart rate ? A: 120-160bpm / min . Q: How to find fetal heart ? A : Within 20 weeks , near the pubis in the midline of the abdomen. 21 weeks -30 weeks, near the left and right of the navel . Over 31 weeks, Above and the navel . Q: What fetal heartbeat sounds like ? A: It sounds like ldquo hong -hong ldquo just like a train voice.
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