Finger Pulse Oximeter Continuous

This economical finger pulse oximeter provides accurate simple measurements for home use. Features include: Large easy to read LED Display; Measuring range for Spo2: 35-99% and pulse rate of 30-254 Beats per Minute; Bar-graph display; Low power indicator and string tether. Two AAA 1.5V alkaline batteries included. Resolution: 1% for SPO2 and 1 BMP for Pulse Rate * Auto power off when no finger is in the device for 8 seconds. One year warranty