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3M™ Littmann® Classic II S.E. Teaching Stethoscope, Black and Burgundy Tube, 40 inch, 2138

UPC# 00707387232795    CAT# 2138    3M ID 70200617028     
Littmann Teaching Stethoscope photo
Littmann Teaching Stethoscope photo
You can be assured that your decision to educate your students with the help of a 3M™ Littmann® Classic II S.E. Teaching Stethoscope is a smart one. As one of our best and most popular chestpieces, it’s also an ideal educational tool.


  • Dual headsets for real-time teacher-patient auscultation
  • 40-inch tube for easy movement around a patient
  • Traditional bell on one side, a diaphragm on the other
  • Pressure-based sound frequency adjustment with tunable diaphragm
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Additional Benefits - Anatomically designed headset - Patented 3M™ Littmann® Snap Tight Soft-Sealing Eartips - Durable, latex-free design - 3-year warranty


ApplicationsPhysical Assessment and Diagnosis
Chestpiece FinishMachined Stainless Steel
Chestpiece TechnologyDouble Sided
ColorBlack, Burgundy
Color GroupAssorted
Diaphragm Diameter1.75 Inch
Diaphragm Diameter (metric)4.4 cm
Diaphragm MaterialEpoxy/Fiberglass
Diaphragm TypeTunable Diaphragm
Eartip TypeSoft Sealing
Extra EartipsYes
Headset MaterialWide diameter aerospace alloy / Anodized aluminum
Length40 Inch
Length (Metric)102 cm
ModelClassic II S.E.
Net Weight244 g
Net Weight (Metric)244 g
Small Diaphragm Diameter1.25 Inch
Small Diaphragm Diameter (metric)32 cm
Special AdaptorsNo
Tube ColorBlack and Burgundy
Warranty Period3 years