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I have found some pretty bad discrepancies in my perviously thought wonderful <a href="http://www.walgreens.com/store/product.jsp?CATID=100125&navAction=jump&navCount=0&skuid=sku1319492&id=prod1319502" target="_blank">BD Rapid Read Flex Tip Thermometer</a>. It seems to not give itself enough time to get a full read. So today I caught it doing this and started testing it for a bit. Wow, ouch, bad!<br><br>
It ranged almost a full degree (.8) at times when i watched it so that i saw what it read when it started beeping (sometimes in as fast as 7-8 seconds) and then what it read when i left it in longer, for about 30 seconds)<br>
Ok so i took a number of readings and every time the temp continued to climb after the beeping, and always stopped climbing some time before 30 seconds.(usually at 20 sec) So I am thinking that this later read is the good one?<br><br>
I tested vaginally and orally (vaginal has been my preferred method this month) and my discoveries were the very similar for both. Always continuing to raise anywhere from .4-.8 after the beep.<br>
I think the difference in how much it would raise after had to do with how soon i retested, so in those cases the thermometer got up to temp faster before the beep and then had less to rise after the beep, i tested this a bit and think i got pretty good confirmation of the theory since the end temps were the stable ones, and the temp at beep would vary depending on how fast i retested.<br><br>
So what's a girl to do? lots of us use these and recommend them, i a still want to for the other features that it gives me.<br>
• backlight<br>
• quiet beep does not annoy me or disturb sleeping bed-mates<br>
• fast read, even if it is not as fast as it claims if you want it to be accurate<br>
• last temp recall<br><br>
I feel that the answer to this is the same as it is to so many things while charting, consistency and in this case, throw in a we bit of patience.<br><br>
I will be ignoring the beep (i hardly hear it from "down there" anyway!) and just leaving it in for a min of 30 seconds, that is a long enough time for me to feel safe it has stabilized a reading and a short enough time that i can time it myself.<br>
I often find myself snoozing off while temping vaginally and removing it 9 min later when my snooze alarm goes off, then recalling and reading last temp later after i get up (or right away if i am expecting or hoping for some change to happen that day!)<br><br>
Another side note on vaginal temping, similar to oral temping location really does matter, in this case it seemed to be depth for me. I do see a consistent .3-4 degree difference from when it is placed halfway in, display still fully showing (lower temp) or when i place it mostly in, with just enough to comfortable hold on to remove<br><br>
I suspect that the higher temp is more stable, so my future temping will be vaginally, 30+ seconds fully inserted. Since i do not know how far off this ideal i have been since i have been using this particular thermometer for the past week or so, i suspect i will pay less head on what my reading were, even though they were pretty stable.<br><br>
does anyone else that uses this brand want to repeat and confirm or counter any of my findings, i would be really interested to know if it is indeed the brand and the other factors I mentioned or I am just a alien! Also wondering if this issue could plauge other "fast read" brands<br><br>
Phone Home!
 

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Thanks for sharing this--I tried to buy this thermometer yesterday on the recommendations of others here, and they didn't have it where I looked. I'll think again <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile">
 

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Discussion Starter #3
until someone or myself proves otherwise, i am guessing that this issue might be a issue with most fast read brands, so i am still sticking with my BD, when i get around to it i may buy another recommended brand and check it
 

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I have to say that this has been my discouraging experience with *all* of the thermometers at my house. And the one that you just swipe across your forehead. It's like they just make up a temp. I've lost all respect for thermometers....they seem entirely worthless to me. I'll probably get a regular old non-digital thermometer if i do temps again.
 

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Discussion Starter #6
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<div>Originally Posted by <strong>Jörð</strong> <a href="/community/forum/post/10313221"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">That's the one that I just bought and stopped temping because I was sure it was wrong! Good to know!</div>
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yeah i am really not suggesting that we stop using them or stop temping. just that we understand how they work and find a way to make them work for us
 

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from a scientific point of view, fast read thermometers aren't precise enough to use for BBT<br><br>
regular digitals that take a minute-3 minutes are fine, but alcohol therms are the best/most precise<br><br>
those instant read therms are fine for detecting a fever, because if your temp is really high, it's going to be much more noticable. with charting, you're trying to detect slight variations of as little as .2 - .4 F, you need something that is very accurate.
 

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Although I hate my thermometer for all the reasons I stated above...I do believe it is accurate... it is not fast read I believe it goes for at least one minute but it only beeps when your temp has plateaued and isn't rising anymore. I can tell before it beeps if I'm pre-O or post-O because it takes longer to get to the final temp if the temp is significantly higher...did that make sense?<br><br>
Also...this one does read out two decimal places instead ov rounding up or sown, which definitely helps with accuracy.
 

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Discussion Starter #10
<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>Jörð</strong> <a href="/community/forum/post/10314138"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Does this one have recall? I have the exact one you linked and I can't make it recall.</div>
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yes it does have a recall, when it is off, push and hold on the button, after it turns of it will show you the last temp before resetting itself to get a new temp.
 

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<div style="margin:20px;margin-top:5px;">
<div class="smallfont" style="margin-bottom:2px;">Quote:</div>
<table border="0" cellpadding="6" cellspacing="0" width="99%"><tr><td class="alt2" style="border:1px inset;">
<div>Originally Posted by <strong>juliav</strong> <a href="/community/forum/post/10314824"><img alt="View Post" class="inlineimg" src="/community/img/forum/go_quote.gif" style="border:0px solid;"></a></div>
<div style="font-style:italic;">Although I hate my thermometer for all the reasons I stated above...I do believe it is accurate... it is not fast read I believe it goes for at least one minute but it only beeps when your temp has plateaued and isn't rising anymore. I can tell before it beeps if I'm pre-O or post-O because it takes longer to get to the final temp if the temp is significantly higher...did that make sense?<br><br>
Also...this one does read out two decimal places instead ov rounding up or sown, which definitely helps with accuracy.</div>
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This sounds just like mine. It also recalls the last 5 temps. It's a Walgreens one and I've had 2...was works great and the other sucks and was terrible from the first day I used it.
 

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Discussion Starter #12
general update, i have been vaginal temping for a while now and finally got into a good cycle so i can finally see how my temping is working out, i leave it in for about a minute, sometimes a bit longer.<br><br>
Temps have been very stable and good for charting. i will look forward to seeing it record a clean thermal shift this weekend i hope!
 

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We believe Quasar has been getting better temps too this month with vaginal temperatures. Well... except for yesterday. If you saw any of my posts from yesterday, we were all over the map!! But I think that was due to wonky waking times. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/lol.gif" style="border:0px solid;" title="lol">
 
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