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1. General Description   

2. Measurement principle 

Diagram of Operation Principle 

3. Precautions for use

1. Red and Infrared-ray Emission  

2. Red and Infrared-ray Receipt 

 

 

4. Product Properties 

5. Product Operation Scope 

6. Operation Instructions 

 

 

 

1. 

 

2. 

3. 

4. 

5. 

6. 

 

 

 

When your finger is plugged into the 

Oximeter, your nail surface must be 

upward. 

 

 
 

Haemoglobin Saturation is percentage of Oxyhe-

moglobin (HbO

2

) capacity, compounded with 

oxygen, by all combinativable haemoglobin (Hb) 

obin (HbO

2

) capacity in blood. In other words, it is 

consistence of Oxyhemoglobin in blood. It is a very 

important ecological parameter for Respiratory 

circulation System. Many respiratory diseases can 

result in haemoglobin Saturation being lowered in 

human blood. Moreover, the following factors can 

also lead to problems in oxygen supply, so that 

human haemoglobin saturation might be reduced: 

Automatic Organic Regulation Malfunction caused 

by Anesthesia, Intensive Postoperative Trauma, 

hurts resulted in by some medical examination and 

etc. In the situation, illnesses, such as light head, 

asthenia, vomitory and etc, might happen to 

patients and even endanger the patient’s life. 

Therefore, it is very important to know Hemoglobin 

saturation of patient timely in clinical medical 

aspects. So that doctors can find problems in time. 

The Finger type Pulse Oximeter features in small 

volume, low power consumption, convenient opera-

tion and being portable. It is only necessary for 

patient to put one of his fingers into a finger type 

photoelectric sensor for diagnosis, and a display 

screen will directly show measured value of 

hemoglobin Saturation. It has been proved in 

clinical experiments that it features in rather high 

precise and repeatability. 

Principle of the Oximeter is as follows: An 

experience formula of data process is established 

taking use of Lambert Beer Law according to 

Spectrum Absorption Characteristics of Reductive 

hemoglobin (R Hb) and Oxyhemoglobin (O

2

 Hb) in 

glow and near-infrared zones. Operation principle 

of the instrument is Photoelectric Oxyhemoglobin  

inspection Technology is adopted in accordance 

with Capacity Pulse Scanning and Recording 

Technology, so that two beams of different 

wavelength of lights (660nm glow and 940nm near 

infrared light) can be focused onto human nail tip 

through perspective clamp finger-type sensor. 

Then measured signal can be obtained by a 

photosensitive element, information acquired 

through which will be shown on two groups of 

LEDs through process in electronic circuits and 

microprocessor.  

1. Do not use the pulse oximeter in an MRI or CT 

environment.

2. Do not use the pulse oximeter in situations where 

alarms are required. The device has no alarms.

3. Explosion hazard: Do not use the pulse oximeter 

in an explosive atmosphere.

4. The pulse oximeter is intended only as an adjunct 

in patient assessment. It must be used in conjunction 

with other methods of assessing clinical signs and 

symptoms.

5. Check the pulse oximeter sensor application site 

frequently to determine the  positioning of the sensor 

and circulation and skin sensitivity of the patient.

6. Do not stretch the adhesive tape while applying 

the pulse oximeter sensor. This may cause 

inaccurate read the manual.

7. Before use, carefully read the manual.

8. The pulse oximeter has no SpO2 alarms; it is not 

for continuous monitoring, as indicated by the 

symbol.

9. Prolonged use or the patient’s condition may 

require changing the sensor site periodically. 

Change sensor site and check skin integrity, 

circulatory status, and correct alignment at least 

every 4 hours.

10. Inaccurate measurements may be caused by 

autoclaving, ethylene oxide sterilizing, or immersing 

the sensors in liquid may cause inaccurate readings.

11. Significant levels of dysfunctional hemoglobins 

(such as carbonxy-hemoglobin or methemoglobin)

12. Intravascular dyes such as indocyanine green or 

methylene blue.

13. SpO2 measurements may be adversely affected 

in the presence of high ambient light. Shield the 

sensor area (with a surgical towel, or direct sunlight, 

for example) if necessary.

14. Excessive patient movement

15. High-frequency electrosurgical interference and 

defibrillators

16. Venous pulsations

17. Placement of a sensor on an extremity with a 

blood pressure cuff, arterial catheter, or intravascular 

line.

18. The patient has hypotension, severe vasocon-

striction, severe anemia, or hypothermia

19. The patient is in cardiac arrest or is in shock

20. Fingernail polish of false finernails may cause 

inaccurate SpO2 readings.

Follow local ordinances and recycling instructions 

regarding disposal or recycling of the device and 

device components, including batteries.

1 Operation of the product is simple and conve-

nient

2 The product is small in volume, light in weight  

(total weight is about 50g including batteries) and 

convenient in carrying.

3 Power consumption of the product is low and 

product is low and the two originally-equipped two 

AAA batteries can be operated continuously for 30 

hours.

4 Low voltage warning will be indicated in visual  

window when battery voltage is so low that normal 

operation of the oximeter might be influenced.

5 The product will automatically be powered off 

when no signal is in the product for longer than 8 

seconds.

The finger type Oximeter can be used to

measure human Haemoglobin Saturation and

heart rate through finger. The product is suitable 

for use in family, hospital (including clinical use in 

internist/ surgery, Anaesthesia, pediatrics, 

intensive care and etc.) Oxygen Club, social 

medical organizations, physical care in sports (It 

can be used before or after sports. Operation in 

sport procedure is not recommended) and etc.

The product is not suitable to monitor patient 

continuously. 

                

1 Installing two AAA batteries into battery cassette 

before covering its cover.

2 Nip the clamp as diagram

3 Plug one of fingers into rubber hole of the 

Oximeter (it is  best to plug the finger thoroughly) 

before releasing the clamp

4 Press the switch button once on front panel.

5 Your finger do not tremble during the Oximeter is 

working. Your body is not recommended in moving 

status. 

6 Read correspondent datum from display screen.

7 Six display modes              

    

After turn on the oximeter, each time you 

press the power switch, the oximeter will 

switch to another display mode, there are 

6 display modes shown as follows:

When you press the power switch for a long 

time (more than on second), the brightness 

of the oximeter will be changed by degrees, 

there are 10 levels on brightness; the 

default level is level four. 

Declaration: 

Please use the medical alcohol to 

clean the rubber touching the finger inside of 

Oximeter, and clean the test finger using 

alcohol before an after each test. (The rubber 

inside os the Oximeter belongs medical rubber, 

which has no toxin, and no harmful to the skin 

of human being).

   

7. Brief Description of Front Panel 

   

 

 

It is apparent the heart rate bargraph display

corresponds with pulse rate.    

 

 

Instruction Manual

OxiSmarter I

Finger type

Pulse Oximeter

No.  AE-XX 

 

 

 

 

Low power indicator 

 

OxiSmarter I

SpO

2

%

PR

bpm

98

77

SPO2 waveform 

 

OxiSmarter I

SpO

2%

PR

 bpm

98

77

 
 

 

PR Bargraph 

SPO2 

PR 

Power 
Switch 

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