Principles of Pulse Oximetry Technology:

The principle of pulse oximetry is based on the red and infrared light absorption characteristics of oxygenated and deoxygenated hemoglobin. Oxygenated hemoglobin absorbs more infrared light and allows more red light to pass through. Deoxygenated (or reduced) hemoglobin absorbs more red light and allows more infrared light to pass through. Red light is in the 600-750 nm wavelength light band. Infrared light is in the 850-1000 nm wavelength light band.

Display

1. Display type:
   65K Color OLED display.
   
2. SP02 display range:
   35%-100% PR.
   
3. PR Display range:
   30-240 BPM PR.
   
4. Display mode:
   bar graph.
   
5. Low power indication.
   
6. Power requirements:
   Lithium polymer rechargeable battery (by USB).
   
7. Power consumption:
   less than 80mA.
   
8. Resolution:
   ±1% for SP02.
   1BPM for Pulse rate.
   
   Measurement Accuracy:
   
9. SP02:
   70%--100%, ±2 digits;
   less than 70% no definition.
   
10. PR:
    30-240 BPM, ±2% or 2 BPM.

Measurement Performance in Weak Filling Condition:
required the test equipment (BIO-TEK INDEX Pulse Oximeter tester) the pulse wave is available without failure when the simulation pulse wave amplitude is at ±4%.

Interference Resistance Capacity against Ambient Light:
Device works normally despite mixed noise produced by BIO-TEK INDEX Pulse Oximeter tester.
The Spo2 device equipped with a function switch, through which the Oximeter can be powered off if the device is not in use for longer than 5 seconds.

Operation Instructions
1. Spread the clamp.
2. Place one finger in the Oximeter (it is best to plug the finger thoroughly) then release the clamp.
3. Press the switch button once on front panel.

Note: PULOX2000 is equipped with a rechargeable lithium battery - make sure that the battery is charged before use.

There are two methods of sending light through the measurement point: transmission and reflectance. In the transmission method, as shown in the figure on the previous page, the emitter and photodetector are opposite of each other with the measuring site in-between. The light can then pass through the site. In the reflectance method, the emitter and photodetector are next to each other on top the measuring site. The light bounces from the emitter to the detector across the site. The transmission method is the most common type used and for this discussion the transmission method will be implied.

After the transmitted red (R) and infrared (IR) signals pass through the measuring site and are received at the photodetector, the R/IR ratio is calculated. The R/IR is compared to a "look-up" table (made up of empirical formulas) that convert the ratio to an SpO2 value. Most manufacturers have their own look-up tables based on calibration curves derived from healthy subjects at various SpO2 levels. Typically a R/IR ratio of 0.5 equates to approximately 100% SpO2, a ratio of 1.0 to approximately 82% SpO2, while a ratio of 2.0 equates to 0% SpO2.

2P-Oximeter's new PULOX2000 is an accurate, light weight & affordable pulse oximeter designed for on-the-go spot checking of the saturation of hemoglobin with oxygen–available now.

Old Generation SpO2	New Generation SpO2 (PULOX2000)
One reading per use	Continuous spot readings
1 way display	4 way OLED display
No data storage	24 hour data storage
No data transmission	USB data transmission
Short energy span	Long lasting battery
Numeric BPM display	BPM numeric & graphic display
Expensive prototypes	Cost effective
Local disributors	Worldwide shipping

Display
Type	LCD display
4 display modes
Parameters	SpO2, PR, Pleth bar. Pleth waveform.
Information	Low Battery
4 levels on brightness
Patient Range
Adult	Pediatric
SpO2
Range	35%-100%
Resolution	1%
Accuracy	70% to 100% ±2 digits
0%-69%: unspecified
Method	Dual wavelength LED
Heart (Pulse) Rate
Range	30-240 bpm
Resolution	1bpm Accuracy
±2bpm or ±2%
Environmental
Operating Temperature	10°C-40°C (50°F-104°F)
Storage Temperature	-20°C - 55°C (-4°F-131°F)
Operating Humidity	35%RH - 75%RH
Storage Humidity	less than 95%RH
Classification
Safety	Class IIA (MDD93/42/EEC IX Rule 10)
Mechanical
Size	57 x 32 x 30 mm
Weight	50g (including battery)
Battery
Type	Lithium polymer rechargeable battery (by USB)
Operation time	minimum 12 hours for normal Operation