Features:  
        Mini and light design with"all in one"integrated for easy carrying
           LED screen to display measurements of SPO2 , PR , Pulse strength
           Immediate and real time spot check
           Single button interface for easy operation
           AAA alkaline/rechargeable battery supporting 3 hour continuous operation
           12Indicator to display low battery capacity
           Automatic power off
Specifications:

Oxygen Saturation(SPO2)    

Measurement range: 35% ~ 100%
Accuracy:70%~100%,±2% 0%~69%,unspecified
Resolution: 1%    

 
Pulse Rate    

Measurement range: 30bpm~250bpm
Accuracy: ±2bpm
Resolution: 1bpm    

 
Display Mode    

SPO2: 1 digit of 2 segment red LED\2 digit of 7 segment red LED
PR: 3 digit of 7segment red LED
pulse strength and/or battery capacity:  6 segment red LED
Indicator for low battery capacity: Red LED    

 
Power Requirements    

Battery type: Two AAA (1.5V) alkaline or rechargeable batterY    

 
Environment Requirements    

Temperature
Operation:0ºC~40ºC
Transportation and storage:-20ºC~60ºC

Humidity
Operation: 15%~95% (non-condensing)
Transportation and storage: 10% ~ 95% (non-condensing)

Atmospheric pressure
Operation: 86kPa~106kPa
Transportation and storage: 50kPa~106kPa    

 
Dimension    

63(H)mm×34(W)mm×33(D)mm    

 
Net weight    

50g(include batteries)