Trusted in over 150 countries, Riester products are developed in collaboration with medical practitioners to set new standards with regard to optical quality, ergonomics and functionality.

duplex is the high-grade Riester quality stethoscope with precision double chest-piece. The acoustic performance has been considerably improved.

• Double-headed chest-piece available in two types: chromium-plated brass or specially lightweight aluminium, galvanized.
• Special membrane for perfect auscultation, 48 mm, with particularly flat and soft non-chill rims for improved adaptation on the skin.
• Bell, 36 mm.
• Overall length: 77 cm.
• duplex is supplied with a pair of replacement ear-tips and a replacement membrane.
  
  duplex: Frequency analysis

  20 Hz – 100 Hz max. 3.6 dB at 100 Hz

  100 Hz – 1,500 Hz max. 21.7 dB at 300 Hz

  Riester equipment is manufactured in Germany to the highest quality and awarded the ISO-9001 certificate. The Riester quality is trusted for over 50 years of company history in development and production of medical diagnostic instruments.

  Product Data Sheet

  
  

  100% Satisfaction Guarantee: At Mansion Health Select, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Health Select in its original condition with your email order confirmation or packing slip for a full refund of purchase price. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping. Items shipped with promotional initial Free Shipping programs are not eligible for free return shipping or free return pickup offers.