Puppy Fetal Heart Rate Monitor Check your puppy's heart rates! It is so easy and inexpensive. The Puppy Fetal Heart Rate Monitor will find and distinguish the heart rates of your developing puppies. So easy and so fast! This product is perfect for both pregnant canine females and adult dogs, accurately measuring both puppy fetal heart rates and adult canine heart rates with its specialized design. Explore our range of pregnancy confirmation devices, including Total Canine Care Relaxin test kits, and ultrasounds! *This product was originally designed for human use and has been validated for canine pregnancy detection.