The ChoiceMMed Finger Pulse Oximeter Features:
***FDA Approved & Medical Grade Quality***
- Large Bright Display of SpO2, Pulse Rate, and Pulse bar.
 - Low power consumption, automatic power off
- Approximately 30 Hour normal operation.
 
 - Battery-low indicator.
 - Supports 2 AAA alkaline or rechargeable batteries.
 - Accommodates widest range of finger sizes from pediatric to adult.
 - Small & lightweight design ( total 0.09 lbs without batteries ).