Parameters:
Two parameters:SPO2, Pulse Rate.
Waveforms:
SpO2 Waveform
Features:
1. 64k COLOR OLED Display, Four Direction adjustable
2. SpO2 and pulse monitoring, and Waveform display
3. Easy to use with one-key operation
4. Small in size, and easy to carry
5. Low voltage alarm display, Auto power-off
6. Runs on standard AAA batteries
Dimension: 67x 38x 36mm
Net Weight: 65g (include batteries)
Gross Weight: 0.15kg
Package Size: 130x 75x 45mm
Color: White  
Specifications:
SpO2:
Measurement range: 35~100%
Accuracy: +/-2% (70~100%), 0~69% unspecified
Resolution: 1%
Pulse Rate:
Measurement range: 30~250 bpm
Accuracy: +/-2 bpm
Resolution: 1bpm
Display Mode: 64k COLOR OLED Display, Four Direction adjustable
Battery type: Two common 1.5V AAA alkaline or rechargeable batteries
Environment Requirements
Temperature:
Working:     0 ~ 40°C
Transport and storage:   -20 °C ~ 60 °C
Humidity:
Working:     15 ~ 95 %( non-condensing)  
Transport and storage: 10 ~ 95 %( non-condensing)
Altitude:
Working:        86 KPa ~ 106 Kpa
Transport and storage:   50KPa ~ 106 Kpa