Santamedical Generation 2 SM-165 Fingertip Pulse Oximeter Oximetry Blood Oxygen Saturation Monitor with carrying case, batteries and lanyard NEWLY UPGRADED - Newly Redesigned in 2015 with major improvements made to the previous pulse oximeter model. *CE and FDA Approved* PRECISE AND RELIABLE - Accurately determine your SpO2 (blood oxygen saturation levels), Fast SpO2 readings, pulse measurements and display it conveniently on a large digital LED display. SPORT/HEALTH ENTHUSIASTS - Suitable for sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SUITABLE FOR ALL AGES - Accommodates wide range of finger sizes - children to adult. LOADED WITH ACCESSORIES - Include 2X AAA BATTERIES that will last you thousands of readings, and a LANYARD for convenience.