3M™ Littmann® Cardiology IV™ Stethoscope
Exceptional Acoustic Performance and Versatility

The 3M™ Littmann® Cardiology IV™ Stethoscope is engineered for healthcare professionals who require outstanding acoustic sensitivity, diagnostic versatility, and everyday durability. With advanced design features including dual tunable diaphragms, dual-lumen tubing, and a distinctive chalice-shaped chestpiece, this stethoscope helps clinicians hear even the faintest body sounds with clarity. From cardiology to primary care, the Littmann Cardiology IV is trusted across a wide range of specialties for both adult and pediatric assessments.

Key Features and Benefits

• Outstanding Acoustic Sensitivity: More than twice as loud as the next leading stethoscope, making it easier to detect low-frequency heart sounds (below 120 Hz) such as Korotkoff sounds, Mitral Stenosis, and S3 and S4 Gallops.
• Dual Tunable Diaphragms: Single-piece diaphragms on both adult and pediatric sides allow you to hear different frequency sounds by adjusting chestpiece pressure.
• Convertible Pediatric Side: Switch from a tunable diaphragm to an open bell by replacing it with the included non-chill bell sleeve.
• Dual-Lumen Tubing: Two sound paths in one tube eliminate the rubbing noise created by traditional double tubes, ensuring clearer auscultation.
• Durable Next-Generation Tubing: Resistant to skin oils, alcohol, and stains, while maintaining shape and flexibility in clinical use.
• Lightweight Design: Weighs less than comparable high-performance stethoscopes for reduced strain during extended use.
• Comfort-Focused Headset: Easily adjusted for a personalized fit, with angled eartubes that align naturally with the ear canals.
• Hygienic and Easy to Maintain: Removable single-piece diaphragms and non-chill rim enhance cleaning and patient comfort.
• Long-Term Reliability: Backed by a seven-year warranty for lasting confidence.

Ideal For

The Littmann Cardiology IV Stethoscope is trusted by a wide range of healthcare professionals, including:

• Cardiologists and internists
• Emergency and critical care clinicians
• Family practitioners and pediatricians
• Medical and nursing students seeking advanced performance

Why Choose the Littmann Cardiology IV?

The Littmann Cardiology IV Stethoscope combines unmatched acoustic clarity with a versatile, durable design. Whether you’re monitoring subtle heart murmurs, lung sounds, or performing routine physical exams, this stethoscope empowers you to diagnose and make decisions with confidence.

Specifications

• Binaural Construction: Double Lumen
• Chestpiece Finish: Machined Stainless Steel
• Chestpiece Technology: Double-Sided
• Chestpiece Weight: 3.1 Ounce (87 g)
• Diaphragm Diameter: 1.7" (4.3 cm)
• Diaphragm Material: Epoxy/Fiberglass
• Headset Material: Wide diameter aerospace alloy/anodized aluminum
• Overall Diameter: 1.7"
• Overall Length: 27" (69 cm)
• Performance: 9
• Small Diaphragm Diameter: 1.3" (3.3 cm)
• Special Adapters: No
• Tube Colour: Black
• Warranty: 7 Years

What is the warranty on the 3M Littmann Cardiology IV Stethoscope?

The 3M Littmann Cardiology IV Stethoscope comes with a 7-year warranty against defects in materials and workmanship. This warranty is honoured by all authorized 3M Littmann dealers including SurgoMed.

Is the Cardiology IV stethoscope latex free?

Yes. The Cardiology IV is not made with natural rubber latex, making it safe for use with latex-sensitive patients and clinicians.

Can the Cardiology IV be engraved?

Yes. SurgoMed offers laser engraving for $7.95. Engraved stethoscopes are final sale and cannot be returned.

What is the difference between the Cardiology IV and the Classic III?

The Cardiology IV offers more than twice the acoustic sensitivity of the Classic III, with dual-lumen tubing, dual tunable diaphragms on both adult and pediatric sides, and a chalice-shaped chestpiece. It is the preferred choice for cardiologists, intensivists, and emergency physicians.

Does the Cardiology IV work for both adult and pediatric patients?

Yes. The dual-sided chestpiece has tunable diaphragms on both adult and pediatric sides. The pediatric side converts to an open bell using the included non-chill bell sleeve.

What is dual-lumen tubing?

Two separate sound channels inside a single tube, eliminating the rubbing noise of traditional double tubes for cleaner auscultation.

How do I clean the Cardiology IV?

Wipe with 70% isopropyl alcohol or mild soap and water. Do not immerse, use sprays, or expose to extreme heat.

Is SurgoMed an authorized 3M Littmann dealer?

Yes. All SurgoMed Littmann products are authentic and carry the full manufacturer warranty.