The PC-68B is a small, lightweight FDA approved pulse oximeter designed to be worn comfortably on the patient's wrist. The PC-68B wrist oximeter accurately measures blood oxygen saturation levels and heart pulse rate. Readings are displayed and stored (up to 500 hours) within a wristwatch unit that sits comfortably on the patient's wrist for maximum convenience and flexibility. Ideal for monitoring daily activities and for overnight studies. The PC-68B oximeter comes with an oximeter data manager software CD for data transmission, storage and analysis and can be widely used in sleep centers, hospitals, and at home.