Author Topic: How to accurately read temp and humidity in a bedroom  (Read 1004 times)

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Offline phobos

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How to accurately read temp and humidity in a bedroom
« on: August 06, 2022, 07:34:25 PM »
Hi, im going insane trying to find a device that accurately can tell you the temp (in celsius) and humidity. I have asked, and some say, they often aren't calibrated, or can't trust them, etc etc, so I don't know what to do.
I need a device that is ready to use, I have no idea how these chips things work.

The idea is to get baseline readings of temp and humidity in my bedroom before I implement changes like a dehumidifier, or a humidifier as needed. I suspect something is off and I will need adjustments but I want to know the levels before I do any changes.

Im also interested in reading PM2.5 ppm levels, so if the device would be a 3 in 1, that would be great.

Thanks

Offline ocala

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Re: How to accurately read temp and humidity in a bedroom
« Reply #1 on: August 07, 2022, 12:31:34 PM »
The Davis VP2 console does have inside temperature and humidity.
If you go to this link it is the manual for the console. On page 50/51 it gives the specs for inside temp and humidity.
https://cdn.shopify.com/s/files/1/0515/5992/3873/files/07395_234_Manual_VP2_Console_RevZ_web.pdf?v=1656098534
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Offline BaseLine

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Re: How to accurately read temp and humidity in a bedroom
« Reply #2 on: August 08, 2022, 03:07:44 AM »
Use a humidor sensor like Xikar Purotemp etc. You can calibrate those with Boveda calibration pack (https://store.bovedainc.com/products/boveda-one-step-hygrometer-calibration-kit-75-rh).  No need to mess around with salts and what not.
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Offline phobos

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Re: How to accurately read temp and humidity in a bedroom
« Reply #3 on: August 09, 2022, 12:05:10 PM »
Anyone has any experience with a device like this?

https://www.elitecheu.com/products/temtop-lkc-1000s-2nd-air-quality-monitor?variant=43086562001155

I just picked up one since it's on sale and I found a discount code, final price 119. I saw it was quite accurate in the tests here:

https://smartairfilters.com/en/blog/best-pm2-5-air-quality-monitors-in-2022/

At least the 1st generation one. One would assume 2nd generation is better but you never know. Anyway, at least pm2.5 should have decent readings here.

Now I just need a temp+humidity one to double check this thing gives accurate readings for that.

Use a humidor sensor like Xikar Purotemp etc. You can calibrate those with Boveda calibration pack (https://store.bovedainc.com/products/boveda-one-step-hygrometer-calibration-kit-75-rh).  No need to mess around with salts and what not.

What does that Xikar one use? I've read SHT31 was recommended. I saw this thing but im not sure if it's a ready to run gadget with a button to press on/off

https://www.digikey.es/reference-designs/en/sensor-solutions/temperature-sensing/2005

From what i've read, it has a button, so I guess it's that white dot, and you can just use it like a regular gadget. It says you can do tracking with it. Not sure what software would one need to extract any data. I would like to disable wireless features anyway, not sure if possible. I doubt I will be using the tracking features. But if the sensor is accurate I may buy this one, price seems reasonable at 30.
« Last Edit: August 09, 2022, 12:14:50 PM by phobos »

Offline BaseLine

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Re: How to accurately read temp and humidity in a bedroom
« Reply #4 on: August 09, 2022, 12:44:08 PM »
If it's good for several thousand worth of cigars, it's OK for you bedroom.  :lol:
Take a look at Govee Smart Sensor or maybe SensorPush wireless or something (has several versions).
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Offline phobos

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Re: How to accurately read temp and humidity in a bedroom
« Reply #5 on: August 10, 2022, 08:09:44 PM »
If it's good for several thousand worth of cigars, it's OK for you bedroom.  :lol:
Take a look at Govee Smart Sensor or maybe SensorPush wireless or something (has several versions).
The thing with these smart things is, you are gaining in data by having a sensor on each room, but I don't like the extra wifi stuff. I turn off Wifi and wireless on everything I have. See this:

https://www.youtube.com/watch?v=V8QJpTMJ2So

Offline davidmc36

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Re: How to accurately read temp and humidity in a bedroom
« Reply #6 on: August 11, 2022, 12:37:16 AM »
I'm gonna guess the owners manual for that TV tells you to remain a safe distance away. You are not watching it from 2 inches in front of the screen.