mibest OLED Finger Pulse Oximeter, O2 Meter, Dual Color White/Black

Reliable and Easy to Use
I bought this 4 years ago, and it is still working well. Its readings compare well to the ones taken with professional equipment in my doctor’s office. Easy to read. I especially appreciate the rotatable display.Very happy with this purchase. I just ordered another one to keep in the car for travel.

Finger pulse oximeter with very crisp clear color OLED display
(Edit) Had this with me during recent 5 days in hospital. Two nurses checked accuracy, spot on, both wanted to know where to get one from themselves..kind of says something. (end edit)Had this for eight days now. Bought as quick delivery replacement. Didn’t expect the quality or accuracy. Simple single button operation.Pros:· OLED color display while having a smaller font is far easier to read than the larger segmented LEDs. A big help for elderly with heart conditions that waken them in the middle of the night. Able to spot the numbers clearly without my bifocals.· Large square power button instead of the tiny button others have· Display graphics can be oriented in four directions, whatever is best legible for patient or caregiver. Data shown in light blue color with SpO2 in larger font, pulse in smaller font. Clear data labels are spelled out in yellow, underneath the data mumbers. A blue pulsating column seems to graphically indicate pulse rate and strength. Small yellow battery indicator.· Added feature is a warning that the finger iscout of position.· very good shielding of red light emitter & sensor for a more accurate read. Good grip on the finger witout being too tight.ACCURACY – measured by simultaneous readings of same hand, comparing with hospital checked unit. Spot on, identical results. Can’t verify objectively but it seems to acquire data a bit quicker than my older tombstone shaped BP monitor. Comes with landyard, soft case with belt loop, and two AAA batteriesNicer design than most units.This stop gap replacement has become my daily tool.CONS: none as yet.

Accurate and sensitive, even with cold hands
I’ve used pulse oximeters before, and most of them do not register when my fingers are cold. This one works! It’s accurate and sensitive.

Works great, but it’s important to understand it.
The mibest meter give repeatable results, but only if used correctly. My first readings were occasionally crazy, sometimes as low as 55%. After understanding how to use it, I got consistent SpO2 readings between 95% and 97%. It helped to read online articles that explain how a pulse oximeter makes its measurements — now understand why it’s important to keep still, attach it to a large finger, reduce ambient light, and be patient (the meter can take up to 20 seconds to display a reading, because it has to average a lot of data). Sometimes I got no reading and had to turn the meter off and back on. With effort, I could manage to get my SpO2 to 100% by hyperventilating (very uncomfortable) or down to 84% by holding my breath (absolute torture that won’t be repeated).I measured my SpO2 while wearing various masks, including a double mask (N95 respirator covered with a home made cloth mask). In no case did I get readings outside the normal range of 95% to 97%. (This is hardly surprising, but I wanted confirmation. Masks have been worn by dentists and surgeons for years. They understand how important O2 is, and they understand how important their clear thinking is to the safety of their patients.)Off topic, I’ll add that there is a YouTube showing a “test” that purports to prove that O2 concentrations reach dangerous levels inside a mask. In this “test”, the guy puts a GX-2009 meter inside a mask. He sets the GX-2009 to report the lowest O2 level and to issue an alarm if the O2 level gets below 19.5%. Atmospheric O2 is 20.9% and exhaled O2 is 16.9%. If you breathe directly into the GX-2009, you will, of course, get an instantaneous value below 19.5%, so it is hardly surprising that a GX-2009 inside a mask will issue a low O2 alarm. This low O2 alarm does NOT mean the mask wearer is breathing in dangerous air — it just means that the meter picked up an instantaneous low value from exhaled air. This guy’s last “test” shows that the GX-2009 does not read low levels without the mask — but the sensors are on the edge of the meter, so the meter placed in front of the face will not read exhaled air O2 concentration. This guy should have realized something was wrong with his last “test” when the “test” did not show a reading below 20.9%. All of these guy’s “tests” are complete abuses of the GX-2009.If you want to know whether a mask affects your SpO2, then get a pulse oximeter, like the mibest.

Make sure you really need and want this device.Make sure it does the stuff you hope it will do.Because sorting out how to return has taken me 5 hours and £20 in postage and fuel

Pretty good but not so acurate.