The Baseline Pediatric Fingertip Pulse Oximeter measures and displays real-time pulse rate and SpO2 levels. The small design is great for pediatric use and perfect for children ages 2 through 12. This reliable and lightweight pulse oximeter has a large, easy-to-read display that automatically shuts off when not in use. The pediatric model features a low battery indicator and a 6-way multidirectional OLED HD display. Included with the Baseline Pediatric Fingertip Pulse Oximeter are 2 AAA batteries and a wrist lanyard for safety.