Humidity

harrychilds

harrychilds

Well-Known Member
I'm a bit confused. My inkbird humidity sensor says 59% humidity and my Digital Hygrometer says 52% humidity. How do I know which one is right? Lol It's kind of confusing me and I need to get everything right before I start growing, I don't want to give my plants 70% humidity if it's 60% humidity, kind of confusing me lol should I buy a new Hygrometer or should I just stick with the inkbird readings? :bigjoint:
 
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ComfortCreator

Well-Known Member
So many factors can affect a reading. Most sensors have calibration too, where you can adjust it to match what you think is right. Some are very sensitive and report changes constantly, others sample less often.

Imo the easiest way is to get 1 or 2 or 3 more sensors and get a consensus. I use the little Govee sensors for about $15 each and they are terrific. You can return the extra sensors if you dont want or need them.

A better quality sensor will have a tolerance that is small and measure accurately.

If I had to pick no doubt it is the Inkbird that is closer to correct or correct.
 
Nrk.cdn

Nrk.cdn

Well-Known Member
If you are doubting sensors, do a salt slurry test.

1) Fill a shotglass with ½ tablespoon of salt.

2) Add ¾ teaspoons of distilled water.
3) Mix the salt and water together, toothpicks work great. You should end up with a sort of salt slurry.

4) Place the hygrometer and shotglass into the airtight container, seal it shut, and wait.

5) After ~8 hrs, your container should have reached 75% RH. Make a note of the reading on your hygrometer and how far off it is from 75%.
 
harrychilds

harrychilds

Well-Known Member
Nrk.cdn said:
If you are doubting sensors, do a salt slurry test.

1) Fill a shotglass with ½ tablespoon of salt.

2) Add ¾ teaspoons of distilled water.
3) Mix the salt and water together, toothpicks work great. You should end up with a sort of salt slurry.

4) Place the hygrometer and shotglass into the airtight container, seal it shut, and wait.

5) After ~8 hrs, your container should have reached 75% RH. Make a note of the reading on your hygrometer and how far off it is from 75%.
Click to expand...
That sounds really complicated to me dude and I'm always really high so I would probably mess it up lol :bigjoint:
Don't they come calibrated out of the factory? Mine is brand new I only set it up the other day
 
bam0813

bam0813

Well-Known Member
Just go by the inkbird . If the other(s) are more than a few% rh off I’d try to calibrate if they can or maybe find a diff but I have 5 total in a 10x10 and never the same, close but not the same
 
Nrk.cdn

Nrk.cdn

Well-Known Member
I thought the salt slurry test would be hard but nope, dead easy. I would agree doing anything thought provoking while high can fail at times. Adding salt to water until a slurry consistency is reached can be a fun science experiment, and your friends will surprised you can do it. Win, win.

Inkbird tend to be highly acurate.
 
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