Veterinary Anursethesia - One of our favourite pieces of monitoring equipment is the esophageal stethoscope - place it before the draping and surgery begins and you'll always haves "ears" to straight to
Esophageal Stethoscope, 18FR, 20, Non-sterile | Med-Vet International
Orange Premium Dual Head Rose Gold Pink Best Esophageal Stethoscope Veterinary - China Stethoscope, Dual Head Stethoscope | Made-in-China.com
Veterinary ESOPHAGEAL STETHOSCOPE 24Fr anesthesia monitoring dog | eBay