This small, lightweight pulse oximeter is designed to be worn comfortably on the patient’s wrist. Ideal for monitoring daily activities and for overnight studies. It’s powerful, too, with 24 hours of battery life and 48 hours of non-volatile memory. Cost-effective for long- and short-term monitoring. Simply slip the WristOx on your patient’s wrist and begin monitoring SpO ₂ and pulse rate instantly. Requires 2 standard AAA batteries that are included. Three year warranty.