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User Manual for Handheld Pulse Oximeter
32
5 Technical Specifications
A. Display Panel:
3.5 inch color TFT LCD;
B. Power Supply:
Internal power supply: 2000mAh lithium battery
AC power adapter: 5VDC/1A,
Working current:
≤
180mA
Input power for AC power adapter: <15VA
The typical continuous operation time of the battery: 18 hours
(when screen display is automatically off and bluetooth
function is disabled).
The typical service life of the battery: 5 years.
C. SpO
2
Measurement
Transducer: dual-wavelength LED sensor with wavelength:
Red light: 663 nm, Infrared light: 890 nm.
Maximal average optical output power:
≤
2mW
Display range: 35~99%
Measuring range: 35~100%
Measuring accuracy:
A
rms
is not greater than 3% for SpO
2
range from 70% to 100%
*NOTE: A
rms
is defined as root-mean-square value of deviation
according to ISO 80601-2-61.
SpO
2
low alert limit setting range: 50%~99%
The device is calibrated to display functional oxygen saturation.
The functional tester cannot be used to assess the accuracy of the
SpO
2
probe or the device.
D. Pulse Rate Measurement
Display and measuring range: 30bpm~240bpm
Accuracy: ±2bpm or ±2% (whichever is greater)
Over-limit setting range: 25bpm~250bpm
E. Data update period