We found this doppler online at http://www.pulseoximeteronline.com/sonoline-c1.html Here are the specs:
* Powerful built-in speaker for listening the heartbeat without headphones
* Easy to read LCD with on/off backlight
* Clear digital fetal heart rate display
* Uses 2 AA size batteries which are easy to find (2 new Batteries are included)
* Auto-off feature & low battery consumption to ensures hours & hours of usage
* Battery icon which indicates how much battery is left
* Headphone jack for listening to the heartbeat or for linking the unit to a computer
* Weights only 180g with the batteries inserted
* Compact design with buttons which are design to withstand repeated usage without wearing out or breaking
* Units features 3 easy to operate modes :
Mode 1 : a heart icon is displayed when the heartbeat is detected and the real-time hear t rate is displayed numerically
Mode 2 : a heart icon is displayed when the heartbeat is detected and it averages the heart rate for a more stable reading
Mode 3 : this mode allows the user to calculate an average heart rate over a specific period of time by manually pushing a button to start & stop the time
We heard Nevaeh's heartbeat by doppler at 8w5d at the doctor's office....once we found a doppler online to buy, Courtney was more like 10 weeks when we tried it at home. We listened to Nevaeh's heartbeat every day! Caitlin checked out youtube.....some women are catching heartbeats with Sonoline doppler models as early as 7 weeks! I hope we are just as lucky to listen to the heartbeat this early. I will post the heartbeat video once we are successful!
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