Three parameters: SpO2,Pulse Rate,Temperature 
* SpO2 waveform, PR strength display 
* 2.8 inch color LCD with real time display 
* Storage/Review trend data up to 3888 groups, data save time interval settable 
* Audio and visual alarm when parameters exceeded and sensor-off 
* Built-in rechargeable Li-ion battery, up to 8 hour running time 
* Automatic shutdown for power saving, shutdown time interval settable 
* Via USB to connect with the computer, unique software for telemonitoring 
  by transmitting data synchronously via internet 
* Battery capacity indicatior and prompt when battery low 
  
Technical Specifications 
  SpO2  
Measure Range:  35~100% 
SpO2 Accuracy:  2%(70~99%), 3%(40~70%) 
Pulse Rate Range: 0~254 bpm 
Pulse Rate Accuracy: 1 bpm 
 Alarm limits range: 
SpO2  upper limits : 95~100%   lower limits: 85~96% 
Pulse Rate:keep up with the heart rate 
 Temperature  
Channel: 1 
Input: Body surface thermal-sensitive resistor temperature sensor 
Measurement Unit: °C/°F selectable 
Measure range: 0~50ºC 
Alarm limits range: Upper limits 36~45ºC   Lower limits 34~38ºC 
Measure accuracy: 0.1ºC 
 System specifications  
Alarm ON/OFF: controlled by general switch and parameter switch (two levels) 
Display mode: LED and 2.8' color LCD screen 
Trend data: 3888 groups of SpO2, TEMP, trend data, The record time interval can be set to 5 Sec. to 120 Sec. , so that the record time rang can be  up to 128 hr. 
AC power adaptor       
Input: AC 100~240V, 50/60Hz, 0.7A 
Output: DC 5V,2.5A 
Internal battery               
Type: 2800mAh/3.7V Li-ion rechargeable battery 
Operating Time: 15 hours of stand-by time with a full battery. 
Recharge time: 8 hours 
  
Dimension:280mm×190mm×100mm  
Net Weight : 1000g