| Littmann Features |
Electronic Model 4100WS |
Electronic Model 3000 |
Master Cardiology |
Cardiology STC |
Cardiology III |
Master Classic II |
Classic II S.E. |
Pediatric and Infant |
Select |
Lightweight II S.E. |
| Product Positioning |
Amplified Superior Acoustics |
Amplified Superior Acoustics |
Superior Acoustics |
Outstanding Acoustics |
Outstanding Acoustics/Versatile Pediatric & Adult Chestpiece |
Portable Yet Excellent Acoustic Performance |
The Industry standard |
High Acoustic Sensitivity |
Reliable Acoustics |
General Purpose |
| Overall Littmann Performance (1-10 Scale) |
10+ |
10+ |
10 |
9+ |
9 |
8 |
7 |
7 |
6 |
5 |
| Chestpiece Design and Technology |
Matte Finished Plated Alloy |
Special chrome coating |
Polished Stainless Steel "Master" Single-Sided |
Machined Stainless Steel Tunable |
Machined Stainless Steel Two-Sided Tunable |
Plated and Polished Alloy "Master" Single-Sided |
Machined Stainless Steel Two-Sided |
Machined Stainless Steel Two-Sided |
Coated Alloy Single-Sided |
Machined Aluminum Two-Sided |
| Binaurals |
Single Lumen Tubing Incorporating Electronics |
Double Lumen |
Double Lumen |
Double Lumen |
Double Lumen |
Thick Single Lumen |
Single Lumen |
Single Lumen |
Single Lumen |
Single Lumen |
| Tunable Diaphragm |
Ambient Noise Reduction (ANR), Digital Electronic Filtering |
Ambient Noise Reduction (ANR), Digital Electronic Filtering |
Yes |
Yes |
Yes - Two Tunable Diaphragms |
Yes |
Yes |
No |
Yes |
No |
| Warranty |
2 Years |
2 Years |
7 Years |
6 Years |
5 Years |
3 Years |
3 Years |
3 Years |
2 Years |
2 Years |
| Headset Material |
Wide Diameter Aerospace Alloy |
Wide Diameter Aerospace Alloy |
Wide Diameter Aerospace Alloy |
Wide Diameter Aerospace Alloy |
Wide Diameter Aerospace Alloy |
Wide Diameter Aerospace Alloy |
Std. Diameter Aerospace Alloy |
Std. Diameter Aerospace Alloy |
Std. Diameter Aerospace Alloy |
Std. Diameter Aerospace Alloy |
| Eartip Type |
Soft-sealing |
Soft-sealing |
Soft-sealing |
Soft-sealing |
Soft-sealing |
Soft-sealing |
Soft-sealing |
Soft-sealing |
Firm |
Soft-sealing |
| Extra Eartips |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
No |
| Special Adapters |
No |
No |
Yes |
No |
No |
No |
No |
No |
No |
No |
| Standard Length |
27"/69 cm |
29"/74 cm |
27"/69 cm |
27"/69 cm |
27"/69 cm |
27"/69 cm |
28"/71 cm |
28"/71 cm |
28"/71 cm |
28"/71 cm |
| Total Weight |
220 grams |
154 grams |
180 grams |
180 grams |
165, 175 grams |
155 grams |
125 grams |
105 and 90 grams |
115 grams |
90 grams |
| Chestpiece Weight |
90 grams |
64 grams |
90 grams |
95 grams |
87 grams |
80 grams |
65 grams |
45 and 30 grams |
55 grams |
25 grams |
| Diaphragm Diameter |
1.53"/2.9 cm |
1.93"/4.9 cm |
1.75"/4.4 cm |
Oval 4.2/4.8 cm |
1.7"/4.3 cm |
1.75"/4.4 cm |
1.75"/4.4 cm |
1.31"/2.9 cm 1.06"/2.7 cm |
1.75"/4.4 cm |
1.75"/4.4 cm |
| Bell or Small Diaphragm Diameter |
N/A |
N/A |
N/A |
N/A |
1.3"/3.3 cm |
N/A |
1.25"/3.2 cm |
1"/2.5 cm .75"/1.9 cm |
N/A |
1.25"/3.2 cm |
| Main Application Areas |
Adult Cardiology/High Performance Infant Pediatric |
Adult Cardiology/High Performance Infant Pediatric |
Cardiology/High Performance |
Adult Cardiology/High Performance |
Cardiology/High Performance Adult and Pediatric |
Physical Assessment and Diagnosis |
Physical Assessment and Diagnosis |
Physical Assessment and Diagnosis |
Limited Physical Assessment and Blood Pressure |
Limited Physical Assessment and Blood Pressure |
| Product |
Electronic Model 4100WS |
Electronic Model 3000 |
Master Cardiology |
Cardiology STC |
Cardiology III |
Master Classic II |
Classic II S.E. |
Pediatric and Infant |
Select |
Lightweight II S.E. |
All Littmann Stethoscopes are latex-free.
Return to Stethoscope Catalog