The Concord BlackOx pulse oximeter has been created to measure the heart rate and blood oxygen saturation levels of both children and adults. With a bright white digital OLED display, the readout of the digit pulse oximeter can be accessed from two display modes; one facing you and with the push of a button, it faces your care giver Flip the screen 180 degrees with one button for easy viewing. It has adjustable brightness for easy viewing and low power consumption for long battery life. It automatically powers off when removed from your finger. If you want to keep a close eye on blood oxygen saturation levels and pulse rate, and the Concord BlackOx Pulse Oximeter is a convenient, light-weight option that with the included carrying case and lanyard so it can be worn around your neck at all times. Its shock resistant rubber cover protects it from damage to ensure that it lasts for many years to come. It will arrive in a reusable foam-padded box that can be used to keep 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.Concord Health Supply, located in the Chicago area, is a global leader in pulse oximetry and these oximeters are manufactured to their 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] for spot checks and overnight/continuous use from manufacturers such as Concord, Nonin and Masimo. You can depend on accurate and reliable products and a knowledgeable staff of experts. If you ever need support or guidance they are available with a click or a phone call.