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Electronic Stethoscope Model 4100WS Electronic Stethoscope Model 3000 Master Cardiology Stethoscope Cardiology S.T.C.
(Soft Touch Chestpiece)
Stethoscope		 Cardiology III Stethoscope Master Classic II Stethoscope Classic II S.E. Stethoscope Classic II Pediatric
and Infant
Stethoscopes		 Select Stethoscope Lightweight II S.E. Stethoscope
Electronic Stethoscope Model 4100WS with Ambient Noise Reduction Electronic Stethoscope Model 3000 with Ambient Noise Reduction Master Cardiology Stethoscopes Cardiology S.T.C. Stethoscopes Cardiology III Stethoscopes Master Classic II Stethoscopes Classic II S.E. Stethoscopes.jpg Classic II Infant Stethoscope 2114 Select Stethoscopes Lightweight II S.E. Stethoscopes
Product Positioning Amplified Superior Acoustics with Ambient Noise Reduction (ANR) Amplified Superior Acoustics with Ambient Noise Reduction (ANR) Superior Acoustics Outstanding Acoustics Outstanding Acoustics Excellent Acoustics High Acoustic Sensitivity High Acoustic Sensitivity Reliable Acoustics General Purpose
Overall Performance
(1–10 Scale)		 10＋ 10＋ 10 9 9 8 7 7 6 6
Main Application Areas Cardiology/ High Performance Cardiology/ High Performance Cardiology/ High Performance Cardiology/ High Performance Cardiology/ High Performance Physical Assessment, Diagnosis Physical Assessment, Diagnosis Physical Assessment, Diagnosis Blood Pressure, Limited Physical Assessment Blood Pressure, Limited Physical Assessment
Chestpiece Design and Technology Matte Finished Plated Alloy Chrome Plated Polymer Polished Stainless Steel Single-sided Matte Finished Stainless Steel, Single-sided with Soft Touch Insert Machined Stainless Steel Two-sided Tunable Plated and Polished Alloy Single-sided Machined Stainless Steel Two-sided Machined Stainless Steel Two-sided Coated Alloy Single-sided High-tech Resin Composite Two-sided
Binaurals Single-lumen Tubing Incorporating Electronics Double-lumen Double-lumen Double-lumen Double-lumen Thick Single-lumen Single-llumen Single-llumen Single-llumen Single-llumen
Eartip Type Soft-sealing Soft-sealing Soft-sealing Soft-sealing Soft-sealing Soft-sealing Soft-sealing Soft-sealing Firm Soft-sealing
Tunable Diaphragm Yes Yes Yes Yes Yes–Two Tunable Diaphragms Yes Yes No Yes Yes
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 Wide Diameter Aerospace Alloy Std. Diameter Aerospace Alloy Std. Diameter Aerospace Alloy Std. Diameter Aerospace Alloy
Extra Eartips Yes Yes Yes Yes Yes Yes Yes Yes No No
Special Adaptors No No Yes No No No No No No No
Standard Length 27"/68.6 cm 29"/73.7cm 22"/56 cm
27"/69 cm		 22"/56 cm
27"/69 cm		 22"/56 cm
27"/69 cm		 27"/69 cm 28"/71.1 cm 28"/71 cm 28"/71 cm 28"/71 cm
Total Weight 220g 185g 175, 185g 168, 178g 165, 175g 155g 125g 105, 90g 115g 118g
Chestpiece Weight 90g 106g 95g 92g 87g 80g 65g 45, 30g 55g 51g
Diaphragm Diameter 1.31"/2.9cm 1.31"/2.9cm 1.75"/4.4cm 2.15" x 1.9"
5.4 cm x 4.8 cm
(Teardrop Shape)		 1.7"/4.3cm 1.75"/4.4cm 1.75"/4.4cm 1.31"/2.9 cm
1.06"/2.7 cm		 1.75"/4.4cm 2.15" x 1.9"
5.4 cm x 4.8 cm
(Teardrop Shape)
Bell or Small Diaphragm Diameter NA NA NA NA 1.3"/3.3cm NA 1.25"/3.2cm 1"/2.5 cm
0.75"/1.9 cm		 NA 1.34" x 1.30"/
34 cm x 32 cm
Warranty 2 Years 2 Years 7 Years 6 Years 5 Years 3 Years 3 Years 3 Years 2 Years 2 Years
Available Colors 1 5 5 5 5 7 11 5 9 6