Displya Type :
LED display
Spo2 : 
Display range : 0-99%
Resolution : 1%
Accuracy : 70-99%, ± 2%  ;0-69% no definition
Pulse Rate :
Measurement range : 25-250 BPM
Resolution : 1BPM
Accuracy : ±BPM
Power Requirement :
Two AAA alkaline batteries
Environment requirements
Operation Tempreture ; 0~40°C
Storage Temperature : -20~60°C