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finger pulse oximeter PR-81

 finger pulse oximeter PR-81


This Fingertip Pulse Oximeter is a kind of innovated medical device with

non-invasive and continuous features for artery SPO2 and PR detection. Being

portable, it is able to measure SPO2 and PR values quickly and precisely.



OLED two color display


Measurement range: 70~99%
Resolution: ±1%
Accuracy: ±2% (70%~99%), 

Pulse rate

Measurement range: 30~240 bpm
Resolution: ±1%
Accuracy: ±2bpm or ±2% (select larger) 
Low Perfusion 0.4%


1.5V (AAA size) 
alkaline battery x 2
Supply voltage: 2.6~3.6V

Working current


Automatic power-off

Automatically power off when no signal in the oximeter for 

more than 8 seconds

Dimension and Weight

Products: 62mm *32mm *33mm

Box:130 (L) × 100(W) ×60(H) mm
65g(without batteries)


1.Integrated with SpO2 probe and processing display module—Small in volume,

light in weight and convenient in carrying

2.Operation of the product is simple ,low power consumption

3.SpO2 value display

4. Pulse rate value display, bar graph display

5.Low-voltage indication: low-voltage indicator appears before working abnormally

which is due to low-voltage

6.Automatically power off function: when the device is under the state of measuring

interface . it will automatically power off within 5 seconds if the finger falls

out of probe.

7.Various color of cover can be selected


Widely used in hospital, home healthcare, oxygen bar, community medical 

centre, alpine area, sports healthcare etc.

Using skills:

1. Install two AAA batteries into battery cassette before covering its cover.

2. Plug one finger into rubber hole of the Oximeter (it is best to plug the finger thoroughly) before releasing the clamp with the nail upwards.

3. Press button on the front panel;

4. Donot tremble your finger when the Oximeter is working. Your body is not recommended

on moving status.

5. Press the button on the front panel, if we want change display direction;

6. Read relevant datum from display screen. 

7. If there is no signal input, oximeter can shut off automatically;

8. Please replace new batteries when OLED indicates the batteries are in low power.