Product: 3M Littmann Model 4100WS
Electronic Cat.
No.:
4100WS

Features amplification and proprietary
Ambient Noise Reduction (ANR) technology.
Superior acoustics are combined with digital
signal processing – offering recording, storage,
and playback capabilities.
The Littmann Electronic Stethoscope Model
4100WS features amplification and proprietary
Ambient Noise Reduction (ANR) technology
allowing you to reduce ambient noise by an
average of 75% (-12dB) without eliminating
critical body sounds. Three frequency modes are
available for listening to heart, lung, and
other body sounds: Bell (20-200 Hz), Diaphragm
(100-500 Hz), and Extended Range (20-1000
Hz).
In addition, digital signal processing offers
recording, storage, and playback capabilities,
as well as the ability to transfer recorded
sounds via an infrared transmission to another
Model 4100 or Model 4000 or IBM-compatible
computer or hand-held device.
When combined with the 3M™ Sound Analysis
Software you have an exquisite, state-of-the art
auscultation system, which allows you to see
what you are hearing via visual display of a
phonocardiogram. This “hardware” and “software”
combination will enhance teaching opportunities,
serve as a diagnostic aid and help you make more
effective use of telemedicine.
- Amplification is up to 18 times greater than
the best non-electronic stethoscopes.
- Ambient Noise Reduction (ANR) technology.
- Filter circuitry provides three frequency
response modes for listening to heart, lung, and
other body sounds: Bell (20-200 Hz), Diaphragm
(100-500 Hz), and Extended Range (20-1000 Hz).
- Digital recording and storage of sounds on
six distinct tracks.
- Infrared transmission of recorded sounds to
another Model 4100, Model 4000 or IBM-compatible
PC or hand-held device.
- LCD display in chestpiece, including heart
rate readout.
- Recording and playback capability at normal
and half-speed.
- Sound Analysis Software for PC or Pocket PC
allowing a phonocardiogram visual display.
- 20 hours of continuous use from two AAA
alkaline batteries.
- Excellent acoustic seal and comfortable fit
with patented 3M™ Littmann® Snap Tight
Soft-Sealing Eartips.
- Comfortably angled, anatomically correct
headset.
- Patient-friendly, nonchill rim.
- Chestpiece sized for adult or pediatric
patients.
- Two-year warranty.
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