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Step 1
Be careful not to mix up other cheaper prenatal listening devices for Dopplers. While dopplers work during early months, the other devices don’t use ultrasound and only work in the third trimester.
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Step 2
Make sure it is medically-certified, and is CE-marked, as well as made by a manufacturer with full ISO approval.
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Step 3
Don’t be fooled if a manufacture says or has the doppler marked “FDA Approved.” The FDA doesn’t approve Dopplers. They have a set of guidelines for levels of ultrasound in dopplers but has not endorsed any particular make.
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Step 4
Watch out for the extras included in the price. For example you are going to need plenty of coupling gel and, in most cases, a 9V battery. You may end up paying more to keep a supply of these on hand.
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Step 5
The usual rules apply for buying over the internet. Make sure the site is secure and that the company provides an address and telephone number in case you need help.











