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Please double check me on this, but I thought the CMS-50F has a built in clock which is handy when you try to synch your Oximeter data with your APAP data.

Hi Secret Agent Girl,

I just bought a CMS-50e from Cooper Medical Supplies. It's sitting in a box on my kitchen counter--I look forward to opening it!. According to Cooper Medical Supplies, the CMS-50f has a wrist read-out, and the CMS-50e does not.

Here's a link: http://www.pulseoxstore.com

Best, Happy Sleeper

With the 50E you have to set the time ever session. (if you want to, not required) Probably with the 50F the finger unit may be replaced, at what cost I don't know, but things like that aren't very cheap. I went with the 50E, it's working great. Jim

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secret agent girl wrote:Well, both of them have the fingertip thingy, so dealing with that is somewhat moot. Though the larger size/weight of the 50E could make it harder. But the wrist thing...I don't know...I don't even like shirt sleeves that go around my wrist!

For those of you with the 50E, do you find the size/weight "oppressive"? (I know what Rested Gal will answer! ) Does it stay on all night, or do you pull it off in the middle of the night without being aware of doing so, the way some people do with masks? LOL

Which weighs more one hummingbird or two, doesn't matter much as neither weights much overall the F will weight more but not all on the finger.

I wore mine the first night, fully expecting to have to hunt for it the next morning. (I toss and turn a lot, and did wake up more and reposition it) In the morning it was still with me, stayed on the two nights I used it without help. ( You could hook the lanyard, and tape the lanyard to you finger, or just tape the unit on your finger, if you have a problem, your choice.) Jim

I also went with the 50e. I provide one caution about it, especially if you are very sensitive to external pressure / stimulus. The 50e has a hard shell that goes over the finger. Now it might not seem much of a difference, but unless you place it just right, it can clamp down on the cuticle area of the finger and HURT like the dickens the next morning. If you are very sensitive to external stimulus, you might want one that has a softer shell against the finger.

Just a thought as you consider a unit. I know, I know! Just what you need! Yet another factor to consider! 8^)

to follow up on the sensitivity issue... the user's manual actually says, "It is recommended that the sensor not be applied to the same finger for more than 2 hours. Please move the oximeter to a different finger if extended monitoring is necessary. Otherwise discomfort may arise from operation if used in one placement for more than 2 hours."

I would suggest if you awaken during the night, that you move it to another finger!

JohnBFisher wrote:Now it might not seem much of a difference, but unless you place it just right, it can clamp down on the cuticle area of the finger and HURT like the dickens the next morning.

I haven't had any discomfort using the 50-E. I wear it on my left index finger. I put my finger in, all the way to the end, and then I pull it back out slightly. I have very slender fingers. I can imagine someone with larger digits may feel more discomfort.

I just weighed the 50-E on my postal scale. It is 1.5 ounces. It feels lightweight on my finger and doesn't bother me during the night. If I shake my hand gently it doesn't come out of place. It's never come off while sleeping, but if you're a very active sleeper, that may be more of an issue. I've never used tape to hold it on, but some people do that.

Someone mentioned that the 50-F wrist model has a clock. With the 50-E, you do have to enter the time before each recording session. Is it the same with the 50-F, or do you just set it once and then forget it? I don't find it a problem to set the time before each session, but if the 50-F only requires that the time be set once, that would be an advantage.

I'm not sure which oximeter I'm going to buy next time. I'm thinking that I would like to try the 50-F. The finger clip just looks more stable and secure, and I don't think it would bother me to have something on my wrist. But I am happy with my 50-E. The data has really helped me to understand my own situation better. I don't think you can go wrong with either the 50-E or 50-F.

DreamOn wrote:Someone mentioned that the 50-F wrist model has a clock. With the 50-E, you do have to enter the time before each recording session. Is it the same with the 50-F, or do you just set it once and then forget it? I don't find it a problem to set the time before each session, but if the 50-F only requires that the time be set once, that would be an advantage.

I have the 50-F and bought it more because of the soft finger sensor. The clock gets set and stays set. I suppose if the battery totally drained, it might lose the time, but I always leave mine hooked up the computer, recharging, after each download so I've never run into it. It keeps date, time and day of week without resetting each time.

I like the display on the 50-F -- it's easy to see and if you're recording overnight, it automatically blacks out the screen to keep the light from shining in your face all night (a big complaint I have with my DME's unit -- damn thing is BRIGHT). If you wake up and want to see what's happening, you just push the button and hold it for a second and it lights the display again for about 30 seconds.

I've been very happy with the 50-F.

DreamOn wrote:I haven't had any discomfort using the 50-E. I wear it on my left index finger. I put my finger in, all the way to the end, and then I pull it back out slightly. I have very slender fingers. I can imagine someone with larger digits may feel more discomfort.

Hi,

I do find the 50E to be a little bit uncomfortable. It does feel like it pinches my finger a bit, or makes my finger go to sleep. It also makes my finger warm, like the light inside is cooking my finger. I am always tempted to take it off, so I use a bit of tape to keep it attached. I use it on my ring finger.

I had a similar sensation of the O2 monitor used in my sleep studies. I had the type that clipped onto my ear. It felt like it cooked my earlobe. My earlobe felt funny for about a week afterwards. At any rate, I seem to have lived through the experience OK.

-john-

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FWIW, I just got mine and wore it Friday night. Whenever I woke up, I would feel the 50E, and switch fingers. The recorded data looks reasonable (I don't think it registered the loss of signal for the 2-3 seconds it takes to move it).