Why HM International?
FREE shipping in the US When you buy from us direct, you get genuine Omron and 3M Littmann products at great prices because we are authorized distributors of Omron Healthcare, Inc. and 3M Littmann Stethoscopes. We do not sell refurbished merchandise. Littmann Stethoscopes are shipped only within the US.

Comparison Chart

Click on Model Name for more information on the model and/or to order the model.
Features	Electronic 4100WS	Electronic Model 3000	Master Cardiology	Cardiology S.T.C.	Cardiology III	Master Classic II	Classic II S.E.	Pediatric and Infant	Select	Lightweight II S.E.
Main Application Areas	Cardiology/High Performance- Adult and Pediatric	Cardiology/High Performance- Adult and Pediatric	Cardiology/High Performance- Adult and Pediatric	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 Positioning	Amplified Superior Acoustics	Amplified Superior Acoustics	Superior Acoustics		Outstanding Acoustics/ Versatile Pediatric & Adult Chestpiece	Excellent Acoustics/ Portable	High Acoustic Sensitivity/ Industry Standard	High Acoustic Sensitivity	Reliable Acoustics	General Purpose
Overall Performance (1-10 Scale)	10+	10+	10	9.5	9	8	7	7	6	5
Chestpiece Design and Technology	Matte Finished Plated Alloy	Matte Finished Stainless Steel	Polished Stainless Steel "Master" Single-sided		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	Hi-Tech Resin composite Two-sided
Binaurals	Single-Lumen Tubing incorporating Electronics	Single-Lumen Tubing incorporating Electronics	Double Lumen		Double Lumen	Thick Single Lumen	Single Lumen	Single Lumen	Single Lumen	Single Lumen
Tunable Diaphragm	Digital Electronic Filtering	Analog Electronic Filtering	Yes	Yes	Yes-Two Tunable Diaphragms	Yes	Yes	No	Yes	Yes
Warranty	1 Year	1 Year	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	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	Firm	Soft-Sealing
Extra Eartips	Yes	Yes	Yes		Yes	Yes	Yes	Yes	No	No
Special Adapters	No	No	Yes		No	No	No	No	No	No
Standard Length	27"/69 cm	27"/69 cm	22"/56 cm 27"/69 cm		22"/56 cm 27"/69 cm	27"/69 cm	28"/71 cm	28"/71 cm	28"/71 cm	28"/71 cm
Total Weight	220 grams	185 grams	175, 190 grams		175 grams	155 grams	125 grams	105 and 90 grams	115 grams	118 grams
Chestpiece Weight	90 grams	106 grams	95 grams		87 grams	80 grams	65 grams	45 and 30 grams	55 grams	51 grams
Diaphragm Diameter	1.31"/2.9 cm	1.31"/2.9 cm	1.75"/4.4 cm		1.7"/4.3 cm	1.75"/4.4 cm	1.75"/4.4 cm	1.31"/2.9cm 1.06"/2.7cm	1.75"/4.4 cm	2.15"x1.9" 5.4cmx4.8cm (Teardrop shape)
Bell or Small Diaphragm Diameter	NA	NA	NA	NA	1.3"/3.3 cm	NA	1.25"/3.2 cm	1"/2.5 cm .75"/1.9 cm	NA	1.34"x1.30" 3.4cmx3.2cm
Number of Colors Available	1	1	4	4	4	6	8	4	6	6
	Electronic 4000WS	Electronic Model 2000	Master Cardiology	Cardiology S.T.C.	Cardiology III	Master Classic II	Classic II S.E.	Pediatric and Infant	Select	Lightweight II S.E.

Other HM International websites:
www.nebulizer.ws, www.stethoscope.ws, www.bloodpressuremonitor.ws

Last updated: November 20, 2007

HM International is an Authorized distributor of Health Care Products like Stethoscope, Nebulizer, Otoscope, Blood Pressure monitor, Body fat analyzer, Pedometer, Heart Rate Monitor.