• SpO2 and PR display, PR waveform and bar graph display 
•  Battery voltage indicator 
•  Friendly Operation Menu for The Function Setting 
•  Three levels adjustable brightness 
•  Pulse sound function 
•  Store and Alarm function; can set upper and lower limits. 
•  USB interface to Computer, software can analyze, store and print the data. 
•  Rechargeable Li battery 
•  Function switch used to activate measurement and turn off power; function key for menu setting 
•  Low power consumption 
•  1.8' 65K Color TFT display, resolution 160128 
•  SpO2: 35-99％ Pulse Ratio: 30-250BPM 
•  Resolution: 1% for SPO2, 1BPM for pulse ratio 

•  Accuracy: (+/-)2% (70％-99％), unspecified (<70%) for SPO2, (+/-)2BPM or

(+/-)2% (select larger) for pulse ratio 

•  Power: 1 rechargeable Li battery 
•  Charge manner : AC transformer or PC USB port 
•  Can work more than 24 hours continuously 
•  Interference resistance capacity against ambient light and  measurement performance at low per-fusion.
•  Small volume 87(L)  45(W)  22(H) mm.light&convenient to carry