VETERINARY SPO2 RECTAL SENSOR 9 PIN NELLCOR COMPATIBLE , WITH STOP RING
Amazon.com : WENSUIJIA Veterinary Handheld Pulse oximeter Blood Oxygen Saturation Tongue Probe for Animal Pets (Include Dogs and Cats) with Bluetooth : Pet Supplies
CONTEC CMS60D-VET Veterinary Pulse Oximeter Handheld Machine for Cat and Dog with Pulse Rate Tongue/Ear SPO2 Probe - Walmart.com
Veterinary Pulse Oximeter, Pulse Oximeter for animals