3M Littmann Cardiology IV Stethoscope Navy Blue Tube, 27 inch (6154)

High Quality Acoustics with 8 year warranty

The 3M Littmann Cardiology IV Stethoscope is designed for clinicians who require outstanding acoustic performance combined with exceptional versatility. ARTG ID 99380
$269.00 ex GST
$295.90 inc GST
RRP $325.60
SAVE $29.70 (9%)

3M Littmann Cardiology IV Stethoscope Navy Blue Tube, 27-inch (6154)

The evolution of medical equipment and devices contains astounding breakthroughs and practical innovations. In 1816, when Rene Laennec of the Necker-Enfants Malades Hospital in Paris created a hearing tube resembling a rolled-up newspaper, it started a quiet revolution for enhanced listening devices that benefits doctors and nurses to this day. Current stethoscope design is credited to Dr David Littmann, who invented lighter, more acoustically capable devices while working at Harvard University.

The 3M Cardiology IV Stethoscope range introduces new design characteristics into classic Littmann stethoscope style. Every component of the 3M Cardiology IV stethoscope is manufactured using long-lasting, environmentally friendly materials, while all features and functions are optimised for silent operation and maximum acoustic capabilities. Doctors and nurses all require personalised equipment, and with stethoscopes all pervasive in healthcare environments, it’s a good idea to stand out in style with a 3M Littmann Cardiology IV Stethoscope.

Navy-blue tube colour

With early stethoscopes, there were only two varieties; one for doctors and one for nurses. Today’s range of stethoscopes is vast, and Mentone Educational showcases the best brands at the right price for use by doctors, nurses and all allied healthcare professionals. The versatility of stethoscopes has never been questioned, so it seems right to provide choices for personalised medical flair. Available in navy blue for a tailored healthcare approach, the 27-inch 3M Littmann Cardiology IV Stethoscope (6154) is guaranteed to last for 7 years of attractive, efficient and precise service.

What are the Cardiology IV benefits?

Recent Littmann Stethoscope advantages are the result of intensive research and innovative solutions. Cardiology IV represents the new wave of stethoscope with improved functional capability for diagnosing a wide range of ailments. Practical 3M Littmann Cardiology Stethoscope IV uses include:

  • Measuring blood pressure
  • Assessing lung sounds
  • Assessing heart sounds
  • Assessing bowel sounds
  • Detecting bruits
  • Measuring the span of the liver
  • A hearing aid for use with hearing impaired patients

Cardiology IV improvements include anatomically correct eartubes for a comfortable fit even after long and repeated use. Lightweight, hard-wearing aerospace inspired eartubes are constructed using aluminium alloy for strength, while additional comfort is achieved using supple spring tension that allows the user to establish individual fit and comfort.  

What does next-generation tubing do?

Earlier stethoscopes utilised only one canal for sound transference. Problems arose when difficult to perceive sounds were coupled with external rubbing or friction at audible levels that interfere with accurate diagnosis. The 3M Littmann Cardiology IV stethoscopes circumvent this problem with the addition of a second sound pathway (double lumen tubing). The introduction of new tubing components that don’t use rubber latex or phthalate plasticisers is yet another step toward healthy environmental practices, along with delivery of greater comfort for more patients and medical professionals.

Are there tuneable diaphragm advantages?

Impressive Cardiology IV innovations include a tuneable diaphragm for use with both adult and paediatric patients. Simple user-friendly pressure adjustment allows the stethoscope acoustic capabilities to be quickly tailored for use with every patient. Understanding tuneable diaphragm capabilities is easy, and with 3M stethoscope models there is no need to remove and replace the chestpiece for same-site auscultation.

Bell mode: A flexible surround is used to suspend the diaphragm and allow the stethoscope to resonate sounds at lower frequencies.

Diaphragm mode: Firmer pressure establishes contact between the diaphragm and internal ring, blocking low-frequency sounds and facilitating clear perception of high-frequency sounds.

Mentone Educational is proud to offer the exciting 3M Littmann Cardiology IV range of stethoscopes for use by medical students and healthcare workers. Choosing the right device in the right colour, including the 27-inch navy-blue (6154) stethoscope is a smart move toward medical excellence. 


Cardiology/High Performance
Approved Environmental Marketing Claim (EMC)
3M™ Littmann® tubing does not contain phthalate plasticizers. It provides longer stethoscope life due to improved resistance to skin oils and alcohol, and is less likely to pick up stains.
Binaural Construction
Double Lumen
3M™ Littmann® Stethoscopes
Chestpiece Finish
Machined stainless steel
Chestpiece Technology
Double Sided
Chestpiece Weight (metric)
87 g
Black, Burgundy, Caribbean Blue, Hunter Green, Navy Blue, Plum, Raspberry, Rose Pink
Colour Group
Black, Blue, Brown, Green, Purple, Red
Diameter (Metric)
Diaphragm Diameter (metric)
4.3 cm
Diaphragm Material
Diaphragm Type
Tunable, single-piece
Eartip Type
Soft Sealing
Environmental claim being made
Environmental claim relates to
Evidence for Claim
Self Certified
Extra Eartips
Headset Material
Wide diameter aerospace alloy / Anodized aluminum
69 cm
Cardiology IV™
Net Weight (Metric)
177 gm
Small Diaphragm Diameter (metric)
3.3 cm
Special Adaptors
Tube Colour
Black, Burgundy, Caribbean Blue, Hunter Green, Navy Blue, Plum, Raspberry, Rose Pink
Warranty Period
7 Years
SKU PE2003
Model # 50707387773514
Brand Littmann
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