Veridian Healthcare 11-50D Deluxe Fingertip Pulse Oximeter Blood Oxygen Level Monitor safely monitors oxygen levels and pulse rate. One-button operation suitable for wide range of finger sizes from pediatric to adult. Dual color OLED display with adjustable screen brightness. Display shows Blood-Oxygen Saturation (SpO2) pulse rate and pulse bar. No prescription required. Includes: oximeter unit 2 AAA batteries nylon lanyard and detailed English/Spanish guidebook. Latex-Free.