The Concord Pink digital fingertip pulse oximeter uses advanced technology to monitor SpO2 (blood oxygen) and heart pulse rate (PR) via a large bright red LED display which allows you to read in the dark or bright light. The oximeter runs up to 30 hours on a single set of AAA batteries and shuts off automatically after eight seconds to avoid unnecessary battery drain. It has a low battery indicator so you can replace the batteries ahead of time. It comes with everything you need: Batteries, carrying case, shock resistant silicone cover and a neck/wrist lanyard.For fast, convenient monitoring of blood oxygen saturation, it is tough to beat this well designed fingertip oximeter. This portable oximeter includes a comfortable lanyard that allows you to keep it close at all times. There's also a sturdy case that keeps it safe while it's being transported. It?s shock resistant rubbercover protects it from damage to ensure that itlasts for many years to come. It will arrive in a reusable foam-padded box that can be used tokeep it out of harm's way when it needs to be stored. Because it comes with a two-year warranty and 100% Money Back Guarantee you can purchase it with confidence. Perfect for sports/aviation use and not intended for medical use.Concord Health Supply, located in the Chicago area, is a global leader in pulse oximetry andthese oximeters are manufactured to their USA specifications. Experts in oximeters, Concord Health Supply sells a broad selection of the best pulse oximeters including wrist oximeters, handheld oximeters and table top oximeters for neonatal, infant, pediatric and adult monitoring (also available with alarms and Bluetooth) for spot checks and overnight/continuous monitoring from manufacturers such as Concord Health Supply, Nonin and Masimo. You can depend on accurate and reliable products and a knowledgeable staff of experts based inour USA headquarters. If you ever need support or guidance they are available with a click or a phone call.