SKU: 54564954112

FD300 Fetal Doppler, Blue

Sale price$35.96 Regular price$39.95
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Description

FD300 Fetal Doppler, BlueListen and even record your baby's heartbeat at home or on the go from as early as 12 weeks of pregnancy! The FD300 Fetal Doppler has the same capabilities as the FD200 but with a few more additional features listed below. Give yourself the peace of mind that your baby is safe and well at all times throughout your pregnancy. This fetal doppler can be connected with a computer to record the baby's heart beat to be shared with family and friends via

Listen and even record your baby's heartbeat at home or on the go from as early as 12 weeks of pregnancy! The FD300 Fetal Doppler has the same capabilities as the FD200 but with a few more additional features listed below. Give yourself the peace of mind that your baby is safe and well at all times throughout your pregnancy. This fetal doppler can be connected with a computer to record the baby's heart beat to be shared with family and friends via email.


Package Includes:

  • Doppler Body
  • 3 Mhz Probe
  • Headphones
  • 2 AA Batteries
  • 60 Gram Ultrasound Gel Tube (supplies over 50 tests)
  • 1 Year Warranty

1 Year Warranty & 30 Day 100% Money Back Guarantee if you're not fully satisfied.






The Facelake FD-300B Fetal Doppler can meet routine examination requirements of obstetricians, midwives, pregnant women, and vascular ultrasounds. This baby heart monitor is a high-performance model with FHR monitoring and a backlit LCD. Three heart rate processing modes are available to select, including a real-time FHR display mode, averaged FHR display mode, and manual mode. The monitor outputs the digital audio signal through the built-in speaker or via the headphone jack. The audio signal is recognized by standard audio recording software, allowing users to share or save recordings to a computer using the optional recording cable.

The interchangeable probe options are lightweight and ergonomically shaped to fit comfortably in the hand of the user. The 3.0Mhz probe is more sensitive than the 2.0Mhz probe and can pick up a baby's heartbeat as early as 8-10 weeks gestation. The 3.0MHz is an early-term and general-purpose baby doppler probe that will work well through most full-term pregnancies. The 2.0MHz late-term/obese pregnancy probe accommodates depths of 10cm or more.


Three Working Modes:
  • Mode 1: A heart icon is displayed when the heartbeat is detected and the real-time heart 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

Features:

  • FDA & CE Approved
  • Listen through the powerful built-in speaker or with headphones
  • Easy to read LCD screen with on/off back light mode
  • Digital fetal heart rate displayed
  • Auto-off feature & low battery consumption to ensure many hours of usage
  • Battery icon indicating remaining battery life (AA batteries)
  • Weighs less than 1/2 a pound
  • Compact design with buttons designed to withstand repeated usage without wearing or breaking


  • FD300 Additional Features

  • Higher quality probe resulting in less static
  • Higher quality LCD display for brighter viewing



Choosing Probes:

  • 3 Mhz: The 3 MHz is an early term and general purpose Doppler probe. It will work very well through most full term pregnancies. A 3 Mhz is more sensitive than a 2 Mhz probe and can pick up baby's heartbeat as early as 8-10 weeks gestation.
  • 2 Mhz: Designed to accommodate late term and obese pregnancies since it works best at 10 cm and larger depths.
  • 8 Mhz: 8.0 MHz Probe is NOT designed for pregnancy applications. This is a Vascular Probe used to locate pulse in the wrist, elbow, etc.

 

Watch over 6,000 tutorials and reviews from our customers here

View Instructions


Recording Cable (Optional)

Digital sound recording. You will be able to record those first sounds for life, record your unborn baby's heartbeat. It not only can be recorded by the computer, but also stored in cassette or CD.





This product is not a diagnostic instrument. It is not an approved device for the treatment or prevention of medical conditions. All activity that is monitored and viewed with the device should not be considered a medical conclusion. The use of the machine provides audio and heart rate value that is for non-medical purposes only. For questions regarding medical conditions, please consult with a medical health professional.



Safety
Complies with: IEC 60601-1:1988+A1:1991+A2:1995
Anti-electroshock Type: Internally powered equipment
Anti-electroshock Degree: Type B applied part
Harmful Liquid Proof Degree (Main Unit): Ordinary Equipment (sealed equipment without liquid proof)
Harmful Liquid Proof Degree (Probe): Prevent from water splashing, degree of protection: IPX4
Degree of Safety in Presence of Flammable Gases: Equipment not suitable for use in presence of flammable gases
Working System: Continuous running equipment
EMC: Group I Class B
Suitable Using Range: Suitable for use after the 12th week of pregnancy

Physical Characteristics
Size: 135mm (Length) *92mm (Width) *29 (Height) mm
Weight: About 245g (including batteries)

Working Environment
Temperature: +5℃ - +40℃
Humidity: <=80%
Atmospheric Pressure: 70 kPa - l06kPa
Transport and Storage Temperature: -10℃ - +55℃
Transport and Storage Humidity: <=93%
Display: 45mm * 25mm LCD display
FHR Measuring Range: 50-240BPM (BPM: beat per minute)
Resolution: 1BPM
Accuracy: (+/-)2BPM
Power Consumption: <0.8W
Auto Shut-OFF: After 1 minute no signal, power off automatically
Battery Type Recommended: Two pieces of 1.5 V DC battery (SIZE AA LR6)

Probe
Nominal Frequency: 2.0MHz or 3Mhz, or 8Mhz
Working Frequency: 2.0MHz(+/-)10% or 3Mhz or 8Mhz
P-: <0.5MPa
Iob: <10 mW/cm2
Ispta: <50mW/cm2
Ultrasonic Output Intensity: Isata<5 mW/cm2
Ultrasonic Output Power: P < 10 mW
Working Mode: Continuous Wave Doppler
Effective Radiating Area of Transducer: 157mm2 (+/-)15%
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54564954112

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4.8 ★★★★★
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A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 2
Not compatible with Honda CRV 2023
Style: 1.5L, Style: 1.5L
Pretty disappointed that the description did not match what my car actually needed. THIS IS NOT COMPATIBLE WITH A HONDA 2023 CRV Engine Air filter… Just glad the cabin air filter worked. Having to buy another one… The image attached is what I needed to replace.
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Reviewed in the United States on January 18, 2026
S
Verified Purchase
Sam E
Lowell, US
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
J
Verified Purchase
john A.
Natrona Heights, US
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
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Reviewed in the United States on May 25, 2026
W
Verified Purchase
Willy Bill
Battle Creek, US
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
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Reviewed in the United States on April 26, 2026
E
Verified Purchase
em
Port Orchard, US
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026

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