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.

• Precision double-headed chest-piece for perfect auscultation, with Riester special membrane.
  
• Matt chromium-plated binaural with integrated reinforced double spring.
  
• Extra-soft, replaceable ear-tips with metal screw thread for comfortable and effective sealing of the external auditory canal.
  
• Extra-strong Y-tube made of PVC for shielding against undesired stray sounds.
  
• Latex-free.
  
• Double chest-piece made of either stainless steel or pleasantly light aluminum.
  
• Special membranes on both sides, Ø 1.88 in and 1.41 in, with particularly flat and soft non-chill rims for improved adaptation on the skin.
  
• bell Ø 1.41"
  
• Overall length: 30.31 in.
  
• duplex® is supplied with two pairs of replacement ear-tips, a replacement membrane each and a name plate.
  
• Available in Black, Slate Grey, Blue, Saffron and Green

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