Sonotrax Pro Fetal Doppler Baby Heart Monitor: Experience the Doppler Effect

After the last menstrual period of an expectant mother, at around or after the 9th or 10th week, she might be able to hear her baby's heartbeat at her prenatal appointment. The OB/Gyne uses a Fetal Doppler device for this purpose, which bounces harmless sound waves off the fetal heart. The way the sound comes back is affected by motion, so a beating heart creates a change in the sound that can be picked up by the receiver in the Fetal Doppler.



Whether the expectant mother actually hears the heartbeat at 9 or 10 weeks depends partly on luck-the instrument must be placed at just the right angle. It also depends on the position of your uterus, and if you're slim or heavy. By the 12th week, the heartbeat can usually be heard consistently, using the Fetal Doppler device for amplification.

But with regards on choosing the right Fetal Doppler device either to buy or rent, don’t you ever try your luck, choose only Sonotrax Pro. It is one of the most popular baby heart monitors used worldwide by the obstetric community. It is an FDA approved 2 MHz fetal doppler used for early detection of your baby's heart beat.

Manufacturers and physicians alike recommend this doppler to be used for larger body types during pregnancy. This Baby's Heart Fetal Monitor can detect the fetal heart beat as early as 8 weeks and is just as sensitive as any other fetal monitor being used by expectant mothers. It uses the same technology as the most sophisticated dopplers on the market.

Listed below are its following features:

• Ergonomic design, compact and light


• Easy-to-use


• Large backlight LCD display


• Accurate FHR detection with clear sound


• High sensitivity interchangeable probe


• Support 2MHZ, 3MHZ, 4MHZ, 8MHZ waterproof probes


• Automatic and manual FHR Counting


• Long time continuous use (about 8h)


• Automatic power-off

And finally with regards on buying or renting for SonoTrax Pro, we only suggest to do it with a trusted website with a secured online shopping and payment feature:

www.edandirect.com/Product/Sonotrax-Pro-Fetal-Doppler-Baby-Heart-Monitor.html!

Read more fetal doppler and monitor reviews at the following websites:

• Dr. Gadget :: 1-888-EKG2YOU


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• All About Fetal Dopplers and Fetal Monitors

Sonotrax Lite Fetal Doppler Baby Heart Monitor: Learning the Use of Fetal Heart Beat Device

In case you are an expectant mother and got able to buy or rent yourself with the Sonotrax Lite fetal doppler, this article is for you, on how to use it if your in the convenience of your home and wanted to make that bonding moment with your baby.

As for a little overview regarding the said brand, Sonotrax Lite has an ergonomic design, compact and light and an easy-to-use feature. So very easy to use just as using your other home appliance. It also has the accurate FHR detection with clear sound, in addition to its high sensitivity interchangeable probe.

In addition, this fetal doppler has a built-in audio recorder and large backlight LCD display. It also supports 2MHZ, 3MHZ, 4MHZ, 8MHZ waterproof probes. With regards to power usage, it has long time continuous use (of about 8 hours) and an automatic power-off.

Finally, this baby monitor can surely meet the routine examination requirements of obstetricians, midwives and pregnant woman themselves. Sonotrax Lite is for simple auscultation (intermittent listening).

And now for its effective results, just kindly follow these great tips:

1. It may be helpful if you are on a full bladder during the procedure.



2. If you are in your early pregnancy stage, start in the middle of the abdomen (stomach), in line with the belly button right above the pubic hair. Or, if you have heard the baby’s heartbeat at the doctor’s office and remember where they were holding the doppler, then this is a good place to start.



3. Then start to move the probe slowly – it is quite easy to scan over too fast, missing the heartbeat.



4. Gently tilt the probe downward toward the pubic bone.



5. You should be sure to use plenty of doppler gel/lotion. If you run out of lotion, you can use any type of skin lotion.



6. If you have trouble distinguishing the sounds you hear, listen to the audio clips included in the fetal doppler package as you bought it. These audio clips contain sounds with typical maternal background noise.



7. It is common to pick up the heartbeat in two places when using the Doppler. You may hear the same heartbeat a few inches apart – do not be alarmed. Physicians listen for a difference in two heartbeats to determine if there are two fetuses.



8. If you are carrying twins, it can be difficult to distinguish between the two heartbeats (even physicians have a tough time with this). It is best to count the heartbeats and find two different rates.



9. If the light on the Doppler is red, first check to make sure both ends of the telephone type cord are plugged into the unit and transducer. If they are plugged in and the light is still red, then replace the battery. If the light is flashing green when the unit is on, the battery is low. Please replace the 9-volt battery.



10. If no light comes on, make sure the battery is installed properly.

Hope you find these tips very helpful. In case you don’t have a fetal doppler yet at your home and planning to buy or rent for one, you can purchase at our website http://www.edandirect.com/ thru our secured online shopping feature using either your credit card or PayPal account.

Read more fetal doppler and monitor reviews at the following websites:

• Dr. Gadget :: 1-888-EKG2YOU


• Dr. Gadget Blogs


• MyGadget Reviews


• The Doctor Blogs In


• All About Fetal Dopplers and Fetal Monitors

Sonotrax Basic Fetal Doppler Baby Heart Monitor: Never Miss the Most Basic Beat

Have you been wondering lately on how can you hear your baby's heart beat clearly and accurately with the best fetal doppler monitors available in the market today? Sonotrax Basic fetal dopplers, as the name “basic” implies, are easy to use and non-invasive. We offer the same FDA approved, medical grade, fetal doppler monitors that physicians and midwives have used for decades now.



Sonotrax Basic is a high performance model with FHR digital LCD display.

This baby heart monitor is equipped with a 3 MHz probe which means that its wavelength is actually smaller than a 3 MHz probe and counter to other fetal dopplers brands’ claim that
Sonotrax Basic is easier to use for this reason. The width of the beam depends on the MHz. All baby heart monitors designed for fetal heartbeat monitoring is equipped with either a 2 or 3MHz probe. With a 2mghz probe the beam is narrow and direct which helps it penetrate deeper and find the fetal heartbeat earlier than 3MHz dopplers.

The lower the frequency, the longer in duration is the period and the longer is the wavelength while the higher the frequency, the shorter in duration is the period and the shorter is the wavelength.

Sonotrax Basic baby heart monitor draws on a 3MHz probe, the one that might be able to find the fetal heartbeat earlier than a baby heart monitor equipped with a 3MHz probe. In our tests this wasn't the case. We believe many factors contributed to this including sound projection (speaker), poor or no static reducing technology, probe surface area and design. However, given the price tag we understand how many of these important characteristics were overlooked.

And finally, by using Sonotrax Basic, you won’t surely never miss a beat!

Read more fetal doppler and monitor reviews at the following websites:

• Dr. Gadget :: 1-888-EKG2YOU


• Dr. Gadget Blogs


• MyGadget Reviews


• The Doctor Blogs In


• All About Fetal Dopplers and Fetal Monitors

Sonotrax Basic A Fetal Doppler Baby Heart Monitor: Hear Your Baby Speak With His Heartbeat

In the Medical Profession field, Fetal Doppler is becoming increasingly recognized that it can be very beneficial for pregnant women to use at home in between visits to their OB/Gyne of hospital. This is particularly the case where mothers are anxious perhaps because they have previously had a difficult pregnancy or a miscarriage.

Some research found that when such a pregnant women buys or rents one of the current range of reasonably priced lightweight hand held dopplers her confidence and wellbeing increases.

You may well have become confused by the seemingly many different options available, if you have been looking at various websites and thinking of buying or renting a Doppler. However, in general there are two different types of real fetal dopplers. Those so-called 'pre-natal listeners' that simply amplify sounds within the abdomen are not dopplers. The two types are 'sound only' and 'digital' fetal dopplers. The sound only allows you to hear the baby's heartbeat. The digital fetal Doppler will also give you the sound but in addition it gives a digital display of the baby's heartbeats per minute.

Fetal doppler technology is based on the Doppler shift principle. This theory was first discovered by Christian Doppler an Austrian physicist in 1842. Doppler discovered that sound waves from a moving source would be compressed or expanded, or that the frequency would change.

Dopplers work on the principle of listening to reflections of small, high frequency sound waves (ultrasound). These ultrasound waves are generated by microscopic vibrations of piezoelectric crystals. When the waves are reflected from moving objects, such as a fetal heart the frequency changes slightly. It is this change that is analyzed by the electronics of the doppler and converted into a sound that you can hear or a digital display of the heart rate.



Fetal doppler is a great tool you can use to begin bonding with your baby before he or she is ever born. Just use them wisely. And with regards to most recommended Fetal Doppler in the market today, only use the Sonotrax Basic A. It is included in the Ultrasonic Pocket Doppler Sonotrax Series manufactured by Edan Instruments. This baby heart rate monitor can meet the routine examination requirements of obstetricians, midwives and pregnant woman themselves. It is a high performance model with FHR digital LCD display.

This particular model has audio output, which can be connected with earphone or recorder. As well, you can operate the unit with 4MHz or 8MHz probe for vascular diagnose.
Here are the other exceptional features of this fetal doppler:

• Ergonomic design, compact and light


• Easy-to-use


• Large backlight LCD display


• Accurate FHR detection with clear sound


• High sensitivity interchangeable probe


• Support 2MHZ, 3MHZ, 4MHZ, 8MHZ waterproof probes


• Automatic and manual FHR Counting


• Long time continuous use (about 8h)


• Automatic power-off

Edan Instruments, Inc. is one of the leading medical equipment manufacturers in China. Located in Shenzhen, a major electronic center where talent and productivity converge, Edan is home to more than 500 employees working in R&D, manufacturing and marketing.

Read more fetal doppler and monitor reviews at the following websites:

• Dr. Gadget :: 1-888-EKG2YOU


• Dr. Gadget Blogs


• MyGadget Reviews


• The Doctor Blogs In


• All About Fetal Dopplers and Fetal Monitors