Use calibrated data for EVERYTHING (dew point calculation, Weather Underground, etc)

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Until this is fixed, I am going to avoid future Acurite purchases.

The problem is simple: After calibrating data on the smartHUB, the changes are not reflected on Weather Underground. Secondly, the dew point calculations are still using the uncalibrated data! This creates frustration and confusion, especially for home environment monitoring where dew point differences are used to determine when to open and close the windows.

So I literally have to manually calculate the dew point, since I know that MyAcurite is presenting me with the wrong calculation (based on uncalibrated temperature/humidity).

This appears to have been an issue as far back as 2012! Why does this continue even with the new MyAcurite?

If a user makes changes via calibration, ONLY THAT DATA should ever be used for ANYTHING: what is sent to Weather Underground, calculating the dew point, etc.

These changes can be saved locally on the hub itself, so we can still use Weather Underground's rapid fire updates, as the smartHUB shall be DIRECTLY sending CALIBRATED data to the Weather Underground servers.

If Acurite is still going to sit on this one, then I will continue to use other brands. One of the main reasons I purchased an Ambient Weather all-in-one station is because they send CALIBRATED data to Weather Underground. When we're talking about a 4F degree difference between thermometers (from +2 to - 2F) and a 6% difference between hygrometers (from +3% to -3%), to NOT honor adjusted/calibrated values is unacceptable.

Thank you.
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thilixud12 .

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Posted 2 years ago

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AcuRite Rachell, Employee

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Hello thilixud12,

The reason you cannot see calibrated data on Weather Underground is because both the smartHUB and PC Connect send data directly to Weather Underground and do not go through My AcuRite where the calibrations are done.  We do appreciate your feedback as we do from all our customers.  Thank you and have a great day.
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thilixud12 .

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I know why uncalibrated values are sent to Weather Underground. That was not the point of this post.

1) Dewpoint presented on MyAcurite should be calculated based on calibrated values. Currently, it is not, and this has been an issue since 2012. In other words, one room will read a dewpoint of 62F, while outdoor will read 59F, and yet in reality they both have the same dewpoint of 62F. However, because MyAcurite is stubborn about ignoring calibrated values for pretty much everything, it presents the user with inaccurate data. The problem is because the uncalibrated values are being used to calculate dewpoint (which is not appropriate.)

2) Weather Underground should receive data directly from the smartHUB. So what is preventing a firmware update that saves the calibrated values directly on the smartHUB, which can then be sent straight to Weather Underground?

Example: User sets +2 for temperature and -1 for humidity for Outdoor Sensor. This change is saved in NVRAM (or some non-volatile storage) in the smartHUB itself. Now the correct values are sent to Weather Underground. Perhaps this can kill two birds with one stone, as it will fix the dewpoint issue with MyAcurite, since MyAcurite will think these values are uncalibrated, and will properly calcuate and present the dewpoint to the user.
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thilixud12 .

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Those options are too much extra work to correct something that should have been fixed by Acurite years ago. Plus, they don't appear to actually change anything presented on the MyAcurite app / web site.

I guess for now 50% RH at 76 degrees F has the same dew point as 50% RH at 80 degrees F... because that is in the best interest of the user.... somehow?

I don't think this oversight is intentional for the reasons listed. I think it's just something they never got to.

This is an example from two years ago: https://support.acurite.com/acurite/topics/mbw_dew_point_problem

"Thank you for the feedback. We do understand customers want certain features and do consider this feedback when improving/reviewing our products. Thank you!"

Of course, nothing has changed, and it's business as usual since then.

As you can see from his comments, the user joe002 is just as confused as I am as to why the uncalibrated values are being used to calculate dew point. It makes no sense, and it takes away value form the user. Acurite, please just fix this. It's not by design, we can tell.
(Edited)
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thilixud12 .

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And this shows you that it's not by design: "When I calibrated the indoor hardware tabletop display, the unit (correctly) used the calibrated Outdoor Humidity and calibrated Outdoor Temperature values to calculate the Dew Point. At least I can look at my hardware tabletop display to see the correctly calculated values – but it’s not as convenient as MBW."

Today, instead of the issue existing on MBW, it exists on MyAcurite. Re-read the above quote by joe002. It's an oversight of MBW (which is now MyAcurite.) It's a bug, an oversight, and Acurite has demonstrated they can use calibrated values to calculate dew point. They just haven't fixed it on MyAcurite. This is the point of my forum post.

Imagine a software program that allowed you to modify the number of servings for your favorite recipes, yet no matter what number of servings you choose, it STILL tells you to use the measurements of ingredients based on the ORIGINAL number of servings!

"Hm, this recipe serves 8 people. And it calls for 2 cups of milk. I only need to serve 4 people. Okay, changed! WHAT? It still calls for 2 cups of milk? That makes no sense!"
(Edited)
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George D. Nincehelser

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Well, if it's too much work for you, then I guess it's not all that important.

Again, there are a lot of people out there that aren't going to know how to do all those detailed calibrations.  That's who Acurite is catering to.

As for your example, the temp value change is going change the RH value.  So how again are you doing this?  How are you calibrating the relative humidity to account for the changing temperature?
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thilixud12 .

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"As for your example, the temp value change is going change the RH value.  So how again are you doing this?  How are you calibrating the relative humidity to account for the changing temperature?"

Again, you're just pointing out the issue with *calibration in general* and it is not exclusive to my feature request / exposing the bug in how MyAcurite does not calculate dew point based on calibrated values (which is an oversight ONLY on the MyAcurite app / website). You might as well just say "We should not allow users to calibrate humidity at all, and here's why..."

"Well, if it's too much work for you, then I guess it's not all that important."

I don't care how many posts you have on this forum, you have been coming off as tongue-in-cheek and arrogant, as if your purpose is to justify what already is. I no longer wish to continue a dialogue with you, and will just hope that Acurite does indeed take user feedback and requests seriously, as they claim to do.
(Edited)
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George D. Nincehelser

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I've given you some options if you want more control over what you send to wunderground.  If you're not interested in those options, then don't use them.

However, I've seen what happens to the data on wunderground when folks adjust the temperature and relative humidity without understanding the relationship between them.   Properly calibrating relative humidity is tough to do without controlling the temperature in some way.

Like I said before, maybe Acurite will offer an "expert" software mode someday, but until then there are 3rd party solutions to fill the void.
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Dreamflight767

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I've had nothing but trouble with my unit.  As I've said before, I can't trust my weather station because nothing seems to be accurate.  It's ridiculous.  I've e-mailed, called, and posted for help but nobody fixes my problem.  They all say the same thing and while I could send it in for repair, I have to pay for shipping. 
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AcuRite Rachell, Employee

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Hello Dreamflight767,

We are sorry for the frustration.  We have emailed you at the email address on file again.  Thank you and Happy Holidays!