Cardionics eScope II Amplified Stethoscope
Why should you buy the E-Scope over the other major brands of electronic stethoscopes?
The frequency settings for Cardionics stethoscopes are physiologically correct: Abe Ravin MD, FACC, discusses frequency ranges for heart sounds as being 20-650 Hz. Abe Ravin, MD, FACC, Auscultation of the Heart, Yearbook Medical Publishers, page 15.
Companies manufacturing electronic stethoscopes that filter too much might actually filter out important frequencies occurring in murmurs. Check the frequency responses of the electronic stethoscopes that you are considering, and make sure that you arent filtering physiological sounds that are crucial in diagnosis.
Features: Exceptional sound quality and filtering; including 64 gain positions and all of the stethoscope controls on the head (frequency selector, up/down volume), and a 2 minute off timer to conserve battery life. Remembers the last volume setting when restarted Can output the stethoscope signals to many different peripherals including a PDA, laptop computer, oscillosocope, (many more devices).
Uses an off-the-shelf AAA battery which is much easier to replace than the competitors models.