Omron Pluse Oximeter model No. CMS50N is Fingertip Pulse oximeter a non-invasive device introduced for the spot check of oxygen substance of atrial hemoglobin (SpO2) and pulse rate of adult and pediatric in home and hospital. This device is not introduced for continuous monitoring. It has one year manufacturer’s warranty. The box contains one oximeter unit with Strap, 2 AAA batteries, Instruction Manual.