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12-04-2023, 04:22 PM   #16
Lev
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QuoteOriginally posted by FozzFoster Quote
Yeh - warm air can hold more humidity than cold air.
So, relative humidity can say 100% when it's cold air even if its not raining/snowing.
However, relative humidity is the common metric presented.
Even though absolute may make more sense for knowing the actual moisture in the air.
Yep, very interesting what this little baby will show, although not sure exactly in what conditions it should be used.

12-04-2023, 09:00 PM   #17
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QuoteOriginally posted by Lev Quote
Can you give me a link to that device?
Smart Thermostat Enhanced | ecobee

Our HVAC installers chose it so I didn't do a lot of thermostat shopping. There might be other thermostats that track humidity too.
12-05-2023, 08:36 AM   #18
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QuoteOriginally posted by Just1MoreDave Quote
Smart Thermostat Enhanced | ecobee

Our HVAC installers chose it so I didn't do a lot of thermostat shopping. There might be other thermostats that track humidity too.
The product name is misleading, since this thermometer has nothing in common with a thermostat.

But anyway it might be that the TO is more interested in budget products <$30 than a smart meter für $240 like the one from ecobe.
12-05-2023, 01:10 PM   #19
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QuoteOriginally posted by angerdan Quote
The product name is misleading, since this thermometer has nothing in common with a thermostat.

But anyway it might be that the TO is more interested in budget products <$30 than a smart meter für $240 like the one from ecobe.
yeah... $240 times number of rooms is just too much

12-14-2023, 06:20 AM   #20
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QuoteOriginally posted by Bob 256 Quote
when you get it tell us what the screwdriver is for
That was my question exactly.
12-15-2023, 08:42 AM   #21
Lev
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Guys,

I have figured out what this screwdriver is for!!! I can tighten the screws, or even remove them!!!!

Actually this thing is working and imho shows real info. Have no idea how to calibrate it, though.

EDIT
49 seems to me is at the higher side, how do you think?







12-15-2023, 09:35 AM   #22
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Higher side of what? Here that would be kinda low in non-conditioned spaces. You can calibrate using the salt water method - cheap, easy and likely as accurate as your device. You and also test by going someplace with better instrumentation, monitoring, and needs - like a museum or archives. Though, depending, you may want to get permission before doing so in a public space.



How to Calibrate a Hygrometer or Air Humidity Sensor? - Ruuvi

12-15-2023, 09:42 AM   #23
Lev
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QuoteOriginally posted by JohnMc Quote
Higher side of what? Here that would be kinda low in non-conditioned spaces. You can calibrate using the salt water method - cheap, easy and likely as accurate as your device. You and also test by going someplace with better instrumentation, monitoring, and needs - like a museum or archives. Though, depending, you may want to get permission before doing so in a public space.



How to Calibrate a Hygrometer or Air Humidity Sensor? - Ruuvi

Higher side within the comfortable range of 30% - 60%. Good point about the museum!
12-18-2023, 01:06 PM - 1 Like   #24
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QuoteOriginally posted by Lev Quote
49 seems to me is at the higher side, how do you think?
No, 49% humidity is absolutely perfect. Especially during winter.
Humidity and Your Health - Public Health Post
Indirect health effects of relative humidity in indoor environments. - PMC

30-70% is acceptable for human health, while 40-60% is perfect.
en.wikipedia.org/wiki/Humidity#Human_comfort

For building construction, permanent values below 60% are recommended.
en.wikipedia.org/wiki/Humidity#Building_construction

Last edited by angerdan; 12-20-2023 at 02:18 AM.
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