Fetal Doppler BF-500D+
Professional Doppler with big Probe to enable an effective search for heartbeats. Excellent price/performance ratio!
This Doppler make hearbeats of unborn babies from 10-12 weeks and up audible. The Doppler is of the same Quality as medical doctors have been using for the last 30 years! The technology just recently became available for the consumer mass market.

Specifications of the Doppler:
- volume control
- 9V batteries, rechargeable, for appr. 7hrs of enjoyment
- blue backlight LCD to display FHR signal, battery indicator, volume indicator and alarm indicator 
- self detect function
- alarm function in case FHR is out of range
- FHR range: 60 - 210 bpm
- ultrasone frequency: 2MHz
- ultrasone intensity: <10mW/cm2
- doppler frequency: 0 - 3KHz
- effective area of the transducer: 6 ± 0.5 cm2
- net weight: 270 gr 
 
Package includes:
- adaptor to charge battery
- English manual
- carry cord
- a tube gel...can also be ordered separately

If you don't feel comfortable yet with the information offered, you can always consult the manual of the BF-500D+ which can be found here !

The manufacturer of this fetal doppler ships worlwide already for year professional medical equipment and has been certified ISO and CE.
The certificate can be found here !