Fingertip Pulse Oximeter, Blue. Get a fast and accurate reading at the touch of a button with this fingertip pulse oximeter. This oximeter measures pulse oxygen saturation and pulse rate with a non-intrusive finger scan. This pulse oximeter by Veridian Healthcare is suitable for use after sports or physical activity, to monitor vitals at home, and more - it is small in size and portable for use on the go. Photoelectric oxyhemoglobin inspection technology is adopted in accordance with capacity pulse scanning and recording technology. Accurately measures oxygen saturation of arterial hemoglobin, pulse rate and perfusion index; Dual-color display that automatically rotates for easy reading; 4 display modes that show Blood-Oxygen Saturation (SpO2), Pulse Rate and Pulse Bar; Accommodates a wide range of finger sizes: circumference approximately 20-75mm, user weight approximately 33-242 lbs. (15-110KG); Low-battery indicator and an automatic shut off to preserve battery life; Batteries included; 2 AAA; Latex Free.