I saw the description said "SPO2-->Measure Range : 35-99%" does it mean it only goes to 99%? Not 100%? Thanks.
1062839
You aren't supposed to have oxygen saturation over 100% and if you think about it, it should be impossible. The only way to get a reading at or above 100% is by hyperventilating. So realistically, measuring up to 99% is all you need. I have a degree in exercise physiology and a doctorate in physical therapy. This is widely known.
1062840
Mine shows my heart rate over 100 most everyday. The oxygen count mine has shown no more than the 99%---but 100 is the most it could show. Check on it, but I think 99% is standard.
1062841
When I power it on, I see two blank lines for oxy & three lines for pulse, which tells me 99% would be maximum display on oxygen.
1062842
They all go as high as 99%. As long as your reading is from 95 and up, your good.The accepted reading for healthy people without pulmonary problems is between 95 and 99%, so being able to get a higher reading on the oximeter isn't necessary..
1062843
I don't know if it goes to !00% or not but I have never known anyone either with the oximeter or in the Doctor's Office to have a 100% saturation. We have been using oximeters for about 10 years now and when my husband's oxygen level is 98 or 99 we feel really good about it. For medicare purposes your oxygen level has to be below 88% for at least 5 minutes before you need extra oxygen.
1062844
Hi..We love ours but I read all the paperwork and although it shows accuracy on the over 100 range it also says it will only display up to the 99
890
A company representative informed me that it filters 100% of that particles. Their website says "99%" of particles. Another company representative said that it was "under 1 micron."
1907934
The specs on their website says the readings displayed will be in .05 degree increments but the accuracy is +- .2 degrees. So if you need more than a .2 degree accuracy, this isn't accurate enough for you.
1966159
The 100% really means nothing when read from the meter. Battery capacity isn't measured like that. A full battery is 12.7V with no load attached, and no external charging applied. You drive the voltage above this to help reverse the chemical process, and get the sulfates detached from the plates by utilizing as much potential as possible.
1488989
I have used this product to control a crane humidifyer in the range of 70 to 90%. I used this device to control a solid state relay that turns on a 120VAC receptacle into which the humidfyer is plugged. I have confirmed the sensor calibration at 70%. I've used it fot two years and think it has been a very economical solution for my application. I can not provide assurance of its accuracy at 45% - though I think it would probably be fine.
668530
It depends on how long you keep it going. It starts at 0. Shut it off at desired ppm. I have a hard time getting over 10 ppm
319220
Your use of the number 0.1% would indicate you're looking for a high level of accuracy. I figure the meter is good for two or three percent plus or minus. I use mine to detect roof leaks. Six to 10 is no leak and 18 or above is a leak. Of course, as stated in the meter description, it'll measure zero to 99%. May be I don't fully understand your question!
1463248
My husband said he only uses it to check the temperature of steel when he is welding. He did use it on water in a pan on the stove once. He said it was very close.
827165
The unit works like any on/off thermostat or humidistat. If the unit is set for say 75% humidity and the hysteresis is set at 2 then the unit will run until it it reaches 75 then turn off. The unit will come back on at 73%. (75-2=73). The LS (low set point) and HS (high set point) are only there so that the set number cannot be set outside of that range. The ls and hs have nothing to do with when the unit shuts off (or on). if ls is 50 and hs is 60 then you cannot set a set point below the 50 or above the 60. Hope all that makes sense.
2182585
it continues to update the readings as long as you have it on your finger. It has alarm function. When your SPO2 or PR is lower than the numbers you set, it will alert you.
44269
Well it says it is 99.9% pure. I am not sure if your stove top gets above 450 but that would take it back off since it melts at 449.
676167
It is rated for N95 which supposedly filters out 95% of particles. They don't state pm, Not for toxic or harmful substances such as lead, asbestos, and oil containing vapors, hope this helps.
453311
Dear Sue,Thanks for your mesage. The "120 seconds in measurement" does not mean must be measured 2 minutes. Usually you just measure 50-60 seconds. But when you measure 120 seconds, it is more accurate. This time the temperature degree is closer to your actual body temperature.Please let me know if you have any question or need any additional information. Thank you!Best regards,Wimpy Kid
740621
It works in the whole range of CO2 % in the air. Normally it is from 500 to 1000 ppm. It can detect beyond this range as well but I have never seen it since these are not usual concentrations of CO2 in the room air.
129266
We have this test meter for our community well. We fluorinate according to the EPA guidelines. It works well when it is calibrated. You have to have the 1% fluoride solution and the tabs to calibrate the meter. We had the meter for about 4 months and the sensor went bad. The company replaced it immediately at no cost but with the wrong part. It took several weeks to replace it with the right part. It was on B/O for some time. Now that we use it daily I can get an idea of the level we need to be at. It's a field test and they are not 100% but close enough for what we need. When our levels were low the meter just gave a Lo code. It am not confident it would give you a zero reading you may be looking for. We have this test meter for our community well. We fluorinate according to the EPA guidelines. It works well when it is calibrated. You have to have the 1% fluoride solution and the tabs to calibrate the meter. We had the meter for about 4 months and the sensor went bad. The company replaced it immediately at no cost but with the wrong part. It took several weeks to replace it with the right part. It was on B/O for some time. Now that we use it daily I can get an idea of the level we need to be at. It's a field test and they are not 100% but close enough for what we need. When our levels... » Read More We have this test meter for our community well. We fluorinate according to the EPA guidelines. It works well when it is calibrated. You have to have the 1% fluoride solution and the tabs to calibrate the meter. We had the meter for about 4 months and the sensor went bad. The company replaced it immediately at no cost but with the wrong part. It took several weeks to replace it with the right part. It was on B/O for some time. Now that we use it daily I can get an idea of the level we need to be at. It's a field test and they are not 100% but close enough for what we need. When our levels were low the meter just gave a Lo code. It am not confident it would give you a zero reading you may be looking for. « Show Less
1391336
It only measures up to 212 degF. I used at oven temps of 450 degF w/o problem.
471252
Hello,Mine is measuring 3.88 on average. If I were you I would reset and then see where it goes. Twenty five sounds outrageously high. I would check it again then if the numbers are still that high I would buy one of those radon detectors that you mail in to compare the readings. I love the unit I bought as I can move it to different places. I have reset it a few times but overall it seems to be working quite well. I really hope those readings are bogus and that it just needs to be reset. If not you will have to have a system put in for remediation.