WellueO2 Pulse Oximeter with Smart Reminder | Blood Oxygen Saturation Monitor for SpO2 and Heart Rate Tracking Continuously, Bluetooth Finger Ring with Free APP &PC Report

CheckMe O2 Max, which seems to be their top of the line pulse oximeter. Awesome!1)Battery life is approximately 72 hours (Dependant upon audible and vibratory alarm settings and actuation, also display mode, either constant display on or display only when momentary press of the button or during an alarm indication will affect battery life).2)The wrist device will record four sessions up to 10 hours each. Good coverage if you cannot download the information daily. However if you have someone who goes to the bathroom every hour and insists on taking it off every time, it will still only record 4 sessions before it writes over previous data. My solution was to keep a box of disposable gloves in the bathroom for them to use on the hand with the Checkme O2 Max..3) The Checkme O2 Max has both audio and/or vibration alerts for both high and low pulse, and low SpO2. The alarm activation and alarm set points can be set in the "O2 Insight Pro" software for Personal Computer (PC), as well as in their IPhone App "ViHealth". The alarms can be silenced By the press of the button on the wrist device.4) If the display is bothersome for some people at night while sleeping, it can be set to only display when in an alarm status or if the button is pressed. The display does not flip for wear on the right hand, so wear it on the left wrist if you want to read the screen the right way up, but it works just as well on the right wrist if you can read upside down. It will record the data and Bluetooth to your phone while worn on either wrist. You can even wear the sensor on a toe if you affix the wrist unit to the foot.5) The display screen is of a comfortable size for viewing. Besides pulse and SpO2 information it also displays alarm status, as well as charging status, download connection, and It also displays the 4-digit code you need to link to the cellphone app.6) CheckMe O2 Max can connect to the "ViHealth" app via Bluetooth for real-time monitoring and alerts. I can sit in the living room and monitor three IPhones bluetoothed to other members of the household while they sleep. Their IPhone will communicate through ViHealth for synchronization of time, setting pulse and SpO2 alarm points, turning on and off alarm functions for Pulse and SpO2.7) When you have it plugged into the USB port on a PC and open up "O2 Insight Pro" software, you can configure alarm points for high and low pulse rate, and low SpO2. you can also configure to have either audiable or vibratory or both alarms. Synchronization of time with the PC. It will also save as PDF or Print out the session reports. Which I have utilized for office visits with medical personnel.8) Possibly one of the best little known features of the Checkme O2 Max, is the ability of importing data from the files created in "O2 Insight Pro" in to OSCAR (Open Source CPAP Analysis Reporter). OSCAR will then incorporate Pulse, Oximeter and Motion information time synchronized with breath by breath recordings of information derived from your APAP, BPAP or CPAP machine and compiles Graphical, Overview or Summary reports that can be printed out to take for medical appointments.As a APAP user I monitor the effectiveness of my mother's Dreamstation CPAP as well as a sister's ResMed AirCurve 10 VAuto BPAP machine with the free software called OSCAR. The Viatom/Wellue software "O2 Insight Pro" allows easy download of the Checkme O2 Max recorded information. I can then import the Pulse, Oximeter and Motion information into OSCAR (Open Source CPAP Analysis Reporter).OSCAR allows graphic comparison and analysis of breathing, zooming in to see breath by breath, with flags indicating Apnea and Hypopnea events, graphs of machine performance of Pressure, Leak Rate, Tidal Volume, Minute Volume, Respiration Rate, Inspiration Time, Exhalation Time, Snore, Time at Pressure, AHI and now I can add SpO2, Pulse Rate and Motion graphs from O2 Insight Pro. OSCAR also indicates Flags for SpO2 Drops and Pulse Change Events, time synchronized with data from the APAP, BPAP and CPAP machines..Our Sleep Doctors are able to utilize the OSCAR reports as well as O2 Insight Pro printed documentation to better evaluate the effectiveness and make adjustments to the PAP machines utilizing the OSCAR report with Pulse/Oximeter information imported from the Checkme O2 Max.My Primary care Physician, also utilizes the O2 Insight Pro to evaluate the effectiveness of medication I am taking.We actually have Four of the Checkme O2 Max in our household as all of us are on different CPAP machines.9). Service and Support, no product would be any good without a Service department to back it up. We have had three occasions to contact Wellue service as one of the sensors became defective and one of the Checkme O2 Max wrist devices failed. On every occasions I sent an email to Service at Wellue, then later that same day, I received an email back requesting additional information, as soon as I provided the Invoice showing where and when I had purchased the devices they sent an email stating a replacement was enroute with tracking number included.. Within four days of finding the faulty unit, we had the replacement in hand. I have also contacted their Service department for assistance in trying to transfer information from Apple IPhone ViHealth app, to my PC for O2 Insight Pro. Although it can be done, I found it much easier to use the provided cable to download directly from the Checkme O2 Max wrist device in to O2 Insight Pro on the personal computer.10). I have no hesitation in recommending the Viatom/Wellue Checkme O2 Max as a product and also their Support & Services Departments for equipment and software support. Product, Support and Service All score a 5 star rating! They have carried my family through a nasty respiratory infection and the long recovery period afterwards.Now if you have read this far, I know there are some of you curious about the "Bionic Glove" version of the Checkme O2 Max. We will wear a fingerless glove over the hand with the ring sensor when out shopping or around young children. It keeps curious little fingers from grabbing the miniature USB cable from the ring sensor to the wrist unit. It also protects the sensor from stray light and keeps the hand warm to ensure good blood flow, both of which will affect accuracy.As for accuracy this type of photo/optic sensor technology utilized in any of the Pulse/Oximeter devices is only accurate to plus or minus 2%. Therefore if you compare against another device, it is possible for SpO2 to differ by 4% and still be within stated accuracy. That said we have the unique opportunity to put sensors from all four devices on the same hand and get a good comparison, The four units we have will agree within 2% SpO2. Pulse is usually within 1 bpm between all of them. That is tried on household members with varying needs of supplemental O2 support, so we can go down to the Low 80% range in testing our Checkme O2 Max devices..

You'll probably think that I'm being overly critical, but I hope that the manufacturer sees this and fixes them, as it's more a firmware / app issue.Good:* It's comfortable enough that if you place it well (so it doesn't interfere with your hand movements like typing), you basically forget it's there. (as least for my size of hand ... if you have larger finger, I suspect you'll want to cut the ring at its thin point so it's not squeezing too much)* The probe seems to hold up okay to getting wet, as if you forget it's there, you'll end up washing your hands with it still on.* The probe is small enough that I'm able to put my preferred size of nitrile gloves over it.Could be better:* There's wasted space on the top line of the wrist display. (I've only ever seen a bluetooth symbol there). I would love to have larger numbers, or a PI% display, so you can position it without needing to use the app. If it's a power drain, maybe only calculate it when on the second display screen (with the battery indicator, time & bluetooth ID)* You can't get a real time graph of your usage. This is odd, because the same app *does* graph in real time for the Wellue fingertop pulseox. For this device, however, you have to wait until it decides to download however many hours of data it's logged, and then can view the graph. I would love to be able to look down at my phone and see what the recent trend is ... especially right after it alarms (did my pulse spike up, or slowly creep up?)And I should mention -- I've only been wearing it for about 40hrs, so it's possible that there are other issues that will show up ... but so far it seems to be a solid product that I'd recommend.Update:So after wearing it for almost two weeks straight (which I know is not what it's designed for), some more notes:* You can get a near-realtime graph by unplugging the sensor and clicking the button to cancel the 10-secnd timer. Plug it back in, and it'll start a new session, allowing you to download the data collected in the last log. It's not ideal, but it's better than waiting for it to hit 10 hours and end the session on its own* The sensor uses the same plug as for charging it. This is good (don't have an open port if you splash water on it), but means that I misplaced the sensor once when charging it. I've since gotten in the habit of putting the finger loop on the wrist band to secure it while charging.* Medical gloves go over it fine, but gauntlet length gardening gloves might be a problem -- I think as it covered the wrist device that it held down the button and powered it off.* I'm not sure how accurate the numbers are. I wore it while doing a stress test at a cardiologist, and they said my pulse hit 155, but this device showed 130. (and this worries me as I had a time two days earlier when the device maxed out at 150). It's also generally 2% lower for O2 sat than the fingertip sensor, which is within tolerance for non-medical grade sensors (usually each is accurate to 1-2%, so 2-4% when comparing two), so the trends (going up / down / steady) is better to look at than absolute numbers.* If you're wearing it 24x7, pick a time of the day to make sure you dump your data ... or you risk it rolling over enough times that you'll get a gap in your logs. Especially if you accidentally power it off and it generates an extra log.* You can downlink the logs while it's charging* You can move the sensor (even to a number finger) without it generating another log if you're quick about it. (within 10 seconds) This is useful if you start to feel a bit sweaty under the band.* If you're doing something that vibrates (mowing the lawn, other power tools), make sure to turn the vibrations all the way up or turn on the phone app so you don't miss the alarms* If you hold the button on the device down for a few seconds, I think it does a factory reset -- deleting all of your settings, and whatever's been logged. (this is a *really* bad design, as you might roll onto it in the night and reset the whole thing)Update 2: I'm actually on my third one, and 6 or 7th sensor ring as I wear it almost 24x7 at this point. The graphs are useful for showing my doctors how crazy variable my pulse has been for the last 3-4 years, and I've cross-checked it against over a dozen doctor's pulseoxes (including three sleep studies, three medical procedures, and an arterial blood draw), and it's always been within 4%. Recently, I was traveling and got the 'error 4' and decided to contact the company to see if there was a fix ... and they sent me a replacement sensor ring.And another tip for people: if you leave the app running in the background while it's on the initial screen (history list, but not the 'more' list), it seems to download automatically so you don't lose log files if the sensor goes flaky or you just forget to download them regularly.