SKU: 66915420645

SonoTrax II Fetal Doppler Baby Heart Monitor with 2 / 3 MHz Probe

$143.64 $159.60
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

SonoTrax II Fetal Doppler Baby Heart Monitor with 2 / 3 MHz ProbeSonoTrax II Fetal Doppler Baby Heart Monitor with 2 3 MHz Probe SonoTrax Series Ultrasonic Pocket Doppler provides care givers with the most cost effective solution to meet the routine obstetric and vascular requirements. Features: Easy to use Compact design Interchangeable waterproof probe Large backlight LCD display Accurate FHR detection with high fidelity sound effect Support 2MHz, 3MHz, 4MHz, 5MHz, 8MHz waterproof probes Auto, Average and Manual

SonoTrax II Fetal Doppler Baby Heart Monitor with 2 / 3 MHz Probe

SonoTrax Series Ultrasonic Pocket Doppler provides care givers with the most cost effective solution to meet the routine obstetric and vascular requirements.

Features:

- Easy-to-use
- Compact design
- Interchangeable waterproof probe
-Large backlight LCD display
- Accurate FHR detection with high-fidelity sound effect
- Support 2MHz, 3MHz, 4MHz, 5MHz, 8MHz waterproof probes
- Auto, Average and Manual modes
- Built in rechargeable battery for 4 hours continuous work
- Automatic power-off to save power

Includes:

- Main Unit (with LCD Display)
- Blue Backlight, Battery Indication, Probe Frequency Detection
- 3MHz Waterproof Interchangeable Probe
- AC Recharger with Rechargeable Lithium Polymer Battery (900mAh)
- 3 Working Modes ( Real-time, Average, Manual )
- Carry case

Part Number: ST2.03

ST2.02 Sonotrax II. Includes back lit screen, rechargeable battery kit and 2 MHz fetal probe
ST2.03 Sonotrax II. Includes back lit screen, rechargeable battery kit and 3 MHz fetal probe

Warranty:

2 Year warranty on the SonoTrax II Fetal Doppler main unit

1 Year warranty on the accessories or disposables

Brochure 

Zona Med Equipment: Sonotrax Doppler Brochure

 

 

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: 66915420645

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4.7 ★★★★★
Based on 2122 reviews
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Verified Purchase
Richard Gopen
Grantham, US
★★★★★ 5
Good, inexpensive replacement filter
I've used these filters for a couple years (four replacements) on my Subaru Crosstrek, and they seem to do the job well, probably as well as the original. I generally remove and clean them every three months, and replace them every six.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
J
Verified Purchase
Jim Wallace
Charlottesville, US
★★★★★ 5
Save some money by doing your own cabin filter change! (You won't notice a difference).
So, one day I was getting an oil change at the dealership, and the associate told me that cabin filter was pretty dirty, which I believed because of the places I take the car, and she said that they could change it while they were finishing up the rest of their inspection, since they already had it apart. I asked her "How much?", and then we both had a laugh when she said "$90." I told her I'd take care of it. It took two days for Amazon to get a replacement filter to me, twenty minutes to watch a You Tube video showing how to replace the cabin filter on my car (I watched it twice), and then about twenty-five minutes to replace the filter itself--I keep a messy glove compartment, so a good portion of the time was loading and unloading that nightmare. In the end, under $15 for the filter, maybe 45 minutes to watch and replace, and the cabin filter hasn't been this good since I first bought the car. This replacement version was as good as the OE filter, fit exactly the same, there's no difference in airflow that I can tell, and so far (6 months later), it seems to be holding up pretty well. We'll see what it is like after a year. I did get the oil changed about a week ago, and the technician didn't raise any alarms about the filter, so everything seems to be working. $90 for a new filter? You can do it yourself cheaper.
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Reviewed in the United States on April 6, 2026
C
Verified Purchase
chad martin
Lexington, US
★★★★★ 4
Fresh Air Upgrade for My 2024 Impreza
Installed this in my 2024 Subaru Impreza, and it fit perfectly—no issues. The air smells noticeably cleaner now, and it took less than 10 minutes to swap out. The carbon and HEPA filtration does a great job clearing out odors, dust, and pollen—definitely an upgrade over the factory filter. The build feels sturdier than the OEM version, though it does have slightly fewer pleats. Might mean it needs replacing a bit sooner, but for the price and performance, I’m fine with that tradeoff. If you’re looking for a quick, affordable way to improve your cabin air, this one’s a solid pick. 
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Reviewed in the United States on June 26, 2025
G
Verified Purchase
Gram21
Fort Morgan, US
★★★★★ 5
Well built, good fit.
I like it so well, I just bought two more to keep on the shelf for when the price doubles. Seems better built than oem, but I don't know how you can judge the filtration; seems good though.
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Reviewed in the United States on May 6, 2026
L
Verified Purchase
LJ
Carnegie, US
★★★★★ 5
Great product
Perfect fit for 21 Cross Trek
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026

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