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3M Littmann Cardiology III Stethoscope, Black Tube, 27 inch, 3128

3M Littmann Cardiology III Stethoscope, 27 inch tube, 3128

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List price: $206.33  


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From the Manufacturer

The 3M™ Littmann® Cardiology III™ Stethoscope, one of the most recognized stethoscopes in the industry, features tunable diaphragms on both sides to deliver outstanding acoustic performance, diagnostic versatility and convenience for treating adult and pediatric patients.

Tunable Diaphragm – the Heart of the Cardiology III Stethoscope
With its innovative tunable diaphragm technology, the Cardiology III™ provides both bell (low frequency) and diaphragm (high frequency) capability during use. Switching between bell and diaphragm modes is as easy as a simple pressure change on the chestpiece, which means there is no need to remove, index and replace for same-site auscultation or turning over the chestpiece. This time-saving feature allows for focus on the patient. The diaphragm on the small side is easily removable and, with the included nonchill bell sleeve, converts to a traditional open bell for capturing low frequencies. The Cardiology III™ stethoscope is used by students and medical professionals such as cardiologists, pediatricians, and other healthcare providers to identify, listen to, and study cardiac, lung, and other body sounds in adult, pediatric patients.

made in usa

Product Features

  • All colors come with Machined Stainless Steel chestpiece
  • The only dual-sided chestpiece in the Cardiology line provides versatile auscultation for both adult and pediatric patients
  • Two tunable diaphragms respond with a simple pressure change to capture low and high-frequency sounds
  • Expand versatility by converting pediatric side to open bell for low frequencies, using the nonchill bell sleeve (included)
  • Two-in-one tube design (dual lumen) eliminates noise interference from two external tubes rubbing together
  • Anatomically designed headset is angled to meet the path of the ear canal

3M™ Littmann® Cardiology III™ Stethoscope   

  • Outstanding acoustic performance and versatility
  • A tunable diaphragm on this double-sided chestpiece makes this a versatile stethoscope for adult, pediatric and small-site auscultation. You can also remove the diaphragm and use as an open bell.

What’s in the Box?

  • Cardiology III stethoscope
  • Nonchill bell sleeve
  • (1) set of small black and (1) set of large gray eartips
  • Instructions



Cardiology/High Performance

Chestpiece Technology

Double sided

Chestpiece Weight

85 Gram

Diaphragm Diameter

1.7 In / 4.3 cm

Diaphragm Material


Small Diaphragm Diameter

1.3 In / 3.3 cm

Diaphragm Type

Two Tunable Diaphragms

Eartip Type

Soft Sealing

Extra Eartips

Yes - two extra pairs

Headset Material

Wide Diameter Aerospace Alloy / Anodized Aluminum


27 In / 69 cm


Cardiology III™

Net Weight

180 Gram


Anesthesiologist, Cardiologist, Emergency Physician, EMT/EMS, Family Practitioner, Internist, Medical Student, Nurse, Pediatrician, Respiratory Specialist


Adult, Pediatric


Nonchill Bell Sleeve


Fast Shipping + Excellent price

Very clear sound very sturdy worth while purchase able to differentiate heart rate sounds and lung sounds at a discounted price glad I bought it. Love that it's made in USA

Littman is still the best stethoscope in the market. worth every penny spent. make sure you get the 27 in because the 22 is too short.

This is an excellent scope, It just need to be longer. I purchased it as pre-owned, so the price that I paid for it , it was a deal.

I was already sold on Littman stethoscopes, and was currently using the Classic model. I hear so much better with my Cardiologist model. I bought the model that was brown and copper.

This stethoscope works so well for accurate patient assessments. I know this stethoscope is expensive but in this case you definitely get what you pay for. I would recommend this model to any healthcare professional in a hospital or doctor's office setting who needs to listen to lung, bowel, or heart sounds.

This stethoscope has high quality sound. I can use it for my ped rotation and for adult auscultation.

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