The JB02020 Finger Pulse Oximeter provides simple, fast, and accurate oxygen saturation (SpO2) and pulse rate measurements. Its lightweight and compact design makes it an ideal solution for home, clinical and EMS settings.
Features:

Lightweight, pocket-size solution
Provides fast and accurate SpO2, pulse rate and perfusion Index measurements
Large LED digital display that is easy to read
Simple one button operation
Automatic power off function to conserve batteries
Accommodates finger sizes range from pediatric to adult

Specifications:
Display: Oxygen saturation (SpO2), Pulse rate and Perfusion Index
Display Range: SpO2: 35% to 100%
Pulse Rate: 30 to 240 bpm
Accuracy (% SpO2): 80% - 99%: ±2% 70% - 100%: ±2%
Pulse Rate Accuracy: ±2%
Perfusion Index: 0-20%
Alarms:
    SpO2 low limit: 90%
    Pulse Rate:
        High limit: 120 bpm
        Low limit: 50 bpm
Low Battery Indicator
Unit Weight: .1 lb (52g)