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 :arrow: For Sunday - July 15, 2018 !

   =D>
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I get that. I supplied info on what's going on with my conditions now, and regarding issues, baseless or not, that have been brought up with this sensor, simple as that. Not saying there isn't a problem, merely sharing what I observed. My ISS will be accessible til I decide to put it back out to pasture, and I'll continue testing, if nothing else but for myself. If I find something that may be relevant, I'll share.
but come summer and high dew points, watchout...
Well, considering the monsoon is here..... As I look at this very moment comparing my dews with the "local gang" there's two 64F's and two 66F's. BTW, I'm using the 2 year old sensor at the moment. ;)
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Like clothes, we'll need to have seasonally-appropriate WINTER and SUMMER sensors (ha,ha)!
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FYI, the original 'cotton field' Stevenson Shields were all "white washed" white and not painted white...something about the lime being more "reflective" than paints which can sometimes actually be absorptive to infrared energy.
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Very helpful, thank you. We live near the sound and it's almost always breezy here.

Thanks everyone else as well - good info to think about.

Kipa


I used to live in Seattle.  You know as well as I do that June through early September you have sunny and long days.  That said, think about your micro climate.  Are you on the sound in west Seattle? Lakefront? Then it might be windy enough where FARS would have little impact.  If not, and you're landlocked in beacon hill then you might need it. 

I would think more about wind flow than temperatures.
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I get that. I supplied info on what's going on with my conditions now, and regarding issues, baseless or not, that have been brought up with this sensor, simple as that. Not saying there isn't a problem, merely sharing what I observed. My ISS will be accessible til I decide to put it back out to pasture, and I'll continue testing, if nothing else but for myself. If I find something that may be relevant, I'll share.

Thanks, yes please do.
Keep those sensors even here they work good enough maybe average 2-3% high humidity winter but come summer and high dew points, watchout...
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Issue isn't linear at all.  Everything is hunky dory just a nice typical summer day mid 88 and DP 67 on average with heat index only 91 around here. 
It's always near high heat index advisor levels above 100 the issue arises for me.

Once temps get into 90's and dewpoint 70-80.
 
Example Actual T93,  DP 75, Hum 56% ,Heat Index 103

SHT31 will show T93, DP 78, Hum 62% Heat index 109

That's the issue.

Yes! That was the issue I was having and like I said in an earlier post the humidity down on the Gulf Coast is unbearable but when you start noticing the heat index becoming outrageous and laughable (close to 120) when around the area it's between 100-108 I knew that something wasn't right, then I came across this topic. My new sensor I received Friday showed better results than my 2+ year old sensor, instead of mid 60s-low 70s humidity percentage while in the low to mid 90s it has been showing mid 50s to low 60s percent range. As far as the 100% issue in 2 days it's topped out at 97% which I hadn't seen with the old sensor in almost a year. It's just very frustrating.

Glad you found the thread,
Now you know you aren't alone.  :sad:
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Issue isn't linear at all.  Everything is hunky dory just a nice typical summer day mid 88 and DP 67 on average with heat index only 91 around here. 
It's always near high heat index advisor levels above 100 the issue arises for me.

Once temps get into 90's and dewpoint 70-80.
 
Example Actual T93,  DP 75, Hum 56% ,Heat Index 103

SHT31 will show T93, DP 78, Hum 62% Heat index 109

That's the issue.

Yes! That was the issue I was having and like I said in an earlier post the humidity down on the Gulf Coast is unbearable but when you start noticing the heat index becoming outrageous and laughable (close to 120) when around the area it's between 100-108 I knew that something wasn't right, then I came across this topic. My new sensor I received Friday showed better results than my 2+ year old sensor, instead of mid 60s-low 70s humidity percentage while in the low to mid 90s it has been showing mid 50s to low 60s percent range. As far as the 100% issue in 2 days it's topped out at 97% which I hadn't seen with the old sensor in almost a year. It's just very frustrating.
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Issue isn't linear at all.
That's the issue.
I get that. I supplied info on what's going on with my conditions now, and regarding issues, baseless or not, that have been brought up with this sensor, simple as that. Not saying there isn't a problem, merely sharing what I observed. My ISS will be accessible til I decide to put it back out to pasture, and I'll continue testing, if nothing else but for myself. If I find something that may be relevant, I'll share.
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Issue isn't linear at all.  Everything is hunky dory just a nice typical summer day mid 88 and DP 67 on average with heat index only 91 around here. 
It's always near high heat index advisor levels above 100 the issue arises for me.

Once temps get into 90's and dewpoint 70-80.
 
Example Actual T93,  DP 75, Hum 56% ,Heat Index 103

SHT31 will show T93, DP 78, Hum 62% Heat index 109

That's the issue.
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anything