SKU: 94355374780

FD320 Fetal Doppler

Sale price$53.96 Regular price$59.95
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Description

FD320 Fetal DopplerListen and even record your baby's heartbeat at home or on the go from as early as 12 weeks of pregnancy! It has the same capabilities as the FD300 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. Package Includes: FD320 Doppler Body 3 Mhz, 2 Mhz, or 8 Mhz Probe Headphones 60 Gram ultrasound gel tube (supplies over 50 tests) 2 AA Batteries 1

Listen and even record your baby's heartbeat at home or on the go from as early as 12 weeks of pregnancy! It has the same capabilities as the FD300 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.


Package Includes:

  • FD320 Doppler Body
  • 3 Mhz, 2 Mhz, or 8 Mhz Probe
  • Headphones
  • 60 Gram ultrasound gel tube (supplies over 50 tests)
  • 2 AA Batteries
  • 1-Year Warranty

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






The FD320 Fetal Doppler features a high-resolution LCD for displaying a real-time FHR waveform and fetal heart rate reading. The doppler uses premium components such as an ultrasonic signal transmitter and receiver, an analog signal processing unit, FHR calculating unit, and an LCD control unit, etc. The unit's color-coded alarm feature automatically alerts to FHR measurements detected outside the normal range. Interference-free audio output through the headphone jack allows for clear audio recording and supports external headphones or speakers.

The FD320 has three working modes: real-time FHR display mode, averaged FHR display mode, and manual mode. This baby doppler also includes continuous monitoring for up to 8 hours of working time usage. The water-resistant probes are interchangeable and can be chosen based on the requirements of each user. For most full-term pregnancies, the 3.0MHz probe suits most early-term and general-purpose pregnancies. The 2.0MHz late-term 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
  • * Recording/Audio Cable is optional


  • Includes everything the FD300 has above, but FD320 in addition has:

  • Colored LCD high resolution display
  • Heartbeat wavelength display and bar graph
  • Color coded alarm changes to red when the fetal heart rate range is out of the normal range



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 a baby's heartbeat as early as 8-10 weeks gestation.
  • 2 Mhz: Designed to accommodate late term pregnancies since it works best at 10 cm and larger depths.
  • 8 Mhz: The 8 MHz probe is designed for Vascular monitoring and provides vein blood flow and artery detection. This probe provides the highest resolution and detects a broader range of frequencies than the other probes. The probe's intended use is for examining surface vessels.

 

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 and record your unborn baby's heartbeat. It can not only be recorded using a computer but also stored on 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)
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
Working Frequency: 2.0MHz(+/-)10% or 3Mhz
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: 94355374780

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4.7 ★★★★★
Based on 28 reviews
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Ryan
Draper, US
★★★★★ 5
This is actually a fantastic dog toy!
Color: Large size (ø 7.4")
I originally got this for my golden retriever. He loves all things ball-shaped and I figured the handles would make this really easy for him to carry and for me to tug. It was a fantastic hit not only with the retriever but my lab and even my older Great Dane also love this toy. It's about the size of a soccer ball and covered in a nice rubber that can be chewed off if you have a destructive player but is more than durable enough for tossing around the house or even in the yard. Chewability-wise, The Dane managed to chew a couple of chunks off the handle part but he's probably a pretty extreme example. I think this would hold up just fine for most dogs' play. I just have to supervise it with my Dane so that he doesn't chew it into a pile of rubber. The biggest surprise of this ball was the fact that it has one of those slide whistles in it that makes a noise as it tumbles and rolls around. This proved irresistible to the Golden Retriever and the Lab. Every time they hear the slide whistle inside, they get up from wherever they are and focus 100% on this ball. It has some heft to it and it bounces a little but not as much as a regular ball its size, it's fun for the little ones to play with inside but it's primarily an outdoor dog toy. The handles are big enough for a human hand to hold them comfortably. It rolls in a hard-to-predict way that is extra helpful for the smaller dogs to chase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
P
Verified Purchase
Paul B.
Phoenix, US
★★★★★ 1
Trash
Color: Medium size (ø 5.5")
Poor quality,’trash
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
B
Verified Purchase
B. Hathcock
Cuba, US
★★★★★ 5
Aggressive chewers have met their match.
Size: 10.5 inch Rubber Flex Tread
We purchased this toy in 2022, it finally broke last night. Four years of rough play with 2 boxers who are aggressive chewers. They would tug together, gnaw on it for hours, and often leave it outside exposed to the elements, but this toy just kept going. It was by far their favorite toy, it kept them busy for hours. I just ordered a replacement. Well worth the money, perfect size. Highly recommend.
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Reviewed in the United States on April 1, 2026
E
Verified Purchase
Erika Wilson
Houston, US
★★★★★ 5
Durable, fun, and safe for my dog
Size: 10.5 inch Rubber Flex Tread
I have a 10 month old, 50 lb mutt who has the musculature of a pit bull and the muzzle of a GSD. Buttercup’s favorite past-time is shredding toys into teeny tiny bits, but sometimes those bits don’t come back out of her mouth. She can’t have tennis balls, stuffies, anything with a squeaker, silicone toys, plastic toys, rubber toys with spikes or small appendages, anything with rope, or most chews & bones. She chewed her first and only $8+ XL bully stick like a corn chip. Finding indoor enrichment is a challenge. Buttercup is extremely pleased with this tire tug thingy, it is very ergonomic for both her and me to get a handle on it, it has more movement than any other toy she can safely have, and it’s very durable. After more than a week, there’s only a little bit of tread missing, which is definitely the best-case outcome with a super chewer. I think this is a good alternative to GoNut toys because it’s solid & dense while also a little bit easier & more interesting to play with, and very unlike GoNuts, this Tonka toy is very reasonably priced. I also think this it’s a good size for almost any breed of dog—I could definitely picture a little Boston or Frenchie dangling from one end. Highly recommended!
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Reviewed in the United States on December 20, 2024
T
Verified Purchase
TasteTheRainbow87
Lowell, US
★★★★★ 5
Dog loves it
Size: 10.5 inch Rubber Flex Tread
I would buy this again and again. It’s extremely durable and has held up great with my 9 month old Saint Bernard puppy. We even call it his “pacifier” because every night he grabs it and chews on it until he falls asleep. Definitely a favorite in our house!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026

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