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Smart Hygrometer Recommendations?

Autofire

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They really only regulate temperature but display both parameters - I'm a distributor for them. What size tent are you in?
Oh that's good to know :biggrin:

I have 2 tents. 0.8 X 0.8 X 1.6 and 1.2 x1.2 X 2.4. Air flow is controlled with 3 X 6 inch fans. One pulls air into the smaller tent with an intake filter attached. One transfers from the small tent to the large tent and the 3rd fan exhausts out through a carbon filter and exits via the window.

I might change that up and seperate each tent so both exhaust through the window and the large tent pulls in its only supply through another intake filter.
 

Autofire

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They really only regulate temperature but display both parameters - I'm a distributor for them. What size tent are you in?
It's the humidity that I am fighting during late flower. I think my VPD is pretty good for the first part because I have had some monster autos. But then when the tent packs out I fight high RH and have had some minor bud rot issues.
 

Death The Cultivator

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Oh that's good to know :biggrin:

I have 2 tents. 0.8 X 0.8 X 1.6 and 1.2 x1.2 X 2.4. Air flow is controlled with 3 X 6 inch fans. One pulls air into the smaller tent with an intake filter attached. One transfers from the small tent to the large tent and the 3rd fan exhausts out through a carbon filter and exits via the window.

I might change that up and seperate each tent so both exhaust through the window and the large tent pulls in its only supply through another intake filter.
I'd personally run separate exhaust fans for each one but I also exhaust back into the same room.

You can try using a foliar of micronized sulfur or a product called CEASE to help prevent bud rot. How is your air circulation in the tents themselves?
 

Autofire

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I'd personally run separate exhaust fans for each one but I also exhaust back into the same room.

You can try using a foliar of micronized sulfur or a product called CEASE to help prevent bud rot. How is your air circulation in the tents themselves?
Running seperate exhaust can be done it's just time consuming to pull everything down and rerun the setup I really should do it though and I think I'll have to eventually.

Would those folairs not affect the taste of the harvest?

I have big fans for circulation in the bigger tent but will be adding more soon. I had minor bud rot in the last harvest that I pulled. But the buds were huge so maybe it was going to happen anyway. It was a DP ultimate that went 18 ounces. Colas as thick as my first. My other grows that were not as heavy have been pretty much trouble free.
 

Tom Bombadil

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ac infinity fans (with the capability) regulate airflow using humidity or temperature as parameters. Humidity and temperature are inversely proportional so if the temperature is regulated, so is the humidity at least thats how I understand it.
 
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Death The Cultivator

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Running seperate exhaust can be done it's just time consuming to pull everything down and rerun the setup I really should do it though and I think I'll have to eventually.

Would those folairs not affect the taste of the harvest?

I have big fans for circulation in the bigger tent but will be adding more soon. I had minor bud rot in the last harvest that I pulled. But the buds were huge so maybe it was going to happen anyway. It was a DP ultimate that went 18 ounces. Colas as thick as my first. My other grows that were not as heavy have been pretty much trouble free.
CEASE is an organic bio fungicide, you'll want to do a bud wash at harvest. Micronized sulfur should only be used until about second week of flower.
 

snerval

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Does anyone have any recommendations for smart home / smart device humidity sensors?
Sensor Push is an accurate device which give you all that, also VPD, the possibility to set alerts, to watch graphes ans export your data.
Pretty accurate too.

Here's a link :

Hope this helps !
 

AutoBobje

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If you're into DIY you could have a looksie here. It was originally for a drybox, but can easily be adapted for registration.
VPD is a calculation of temperature and can be programmed into the device and outputted on your smartphone.
How Do You Calculate VPD?
To calculate Air VPD you just need two things: temperature & humidity, but there are a couple of steps.
How to calculate air VPD:
  1. Figure out the SVP
    • SVP = 610.78 x e^(T / (T +238.3) x 17.2694))
      • T is in degrees Celsius
      • The result, SVP, is in pascals (divide by 1000 to get kPa)
      • e is a mathematical constant called Euler's Number, approximately equal to 2.71828.
  2. Calculate the VPD
    • SVP x (1 – RH/100) = VPD
Regards,

Bob
 
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