The system can transform biomedical signal into electric signal through signal detection and reprocess Module, at the same time preprocess interference suppression, signal filtering and amplification and so on. Then it will conduct a computational analysis to the parameters after the sampling and quantification through data extraction and Preprocess Module.

The results will be monitor and compared to threshold

value, which may lead to an Alarm. The result date will

be stored to RAM in real time, which can be transmitted to a PC. The PC can show all the
parameter values in real time.

1)Compact and portable, easy to use

2)Display of ECG waveform, heart rate, SpO2, pulse rate, pulse waveform

3)Earphone output and 16 steps volume adjustable

4)Alarm for SpO2 and pulse rate exceeding limits

5)Real-time detecting, TF card data record and review

6)Real-time clock

7)Recorded data can be transferred

to a PC

8)PC analysis software

9)Low power consumption

(1) Measurement of auscultation volume

(2) Measurement of Heart Rate

(3) Measurement of SpO2

(4) Measurement of pulse rate

(5) Measurement Performance in Weak filling

Condition

(6) Resistance to surrounding light

Lung sound range: 100Hz~800Hz
Heart lung combination sound range: 20Hz~800Hz

Range: 30bpm~300bpm
Resolution: 1bpm
Accuracy: ±2bpm or ±2%(select larger)

range: 0%~100%
resolution: 1%
accuracy: When the SpO2 measurement range is 70%~100%, the permission of absolute error is ±2%. Below 70% unspecified.

Range: 30bpm~250bpm
Resolution: 1bpm
Accuracy: ±2bpm or ±2%(select larger)

SpO2 and pulse rate can be shown correctly when pulse-filling ratio is 0.4%, SpO2 error is ±4%, pulse rate error is ±2 bpm or ±2%(select larger).

The deviation between the value measured in the condition of man-made light and indoor natural light and that of darkroom is less than ±1%.