These have to be the least accurate things I have ever seen.
The rectangular one is accurate or accurate enough and has been what I used but I noticed files all had cutouts for these round hygrometers…
Well from my 6 pack 1 is within a margin of error to even be useful.
I get they aren’t expensive but seems like a waste of money for this bad.
yeah, it’s usually 60% ambient humidity here, and then in the dry box it’ll read <15%. so that’s a pretty decent indicator to me that it’s working fine. I don’t really care if it’s 10, 15, or even your 25%, those are all way less than the ambient baseline and let me know that the dessicant is working.
If you’ve got some need to the humidity accuracy then that’s another thing, but for me that’s why I use those cheapos.
I use modified cereal containers with dessicant on the bottom and have a mount modelled up for those sensors.
Fair enough. I guess my point is that since they swing between them so much how do you know you didn’t put a sensor in there that is reading way under humidity and is actually closer to 40% while reading 15?
I guess it doesn’t really matter if it’s just to see if the humidity appears to be increasing over time but that difference between them makes me worry I won’t catch if it’s actually matching humidity because of a difference between the readouts.
I’m also a very OCD nerd about certain things so, that’s not helping me with these. I feel I can’t compare any one of them against another for much purpose but only use them singularly at best for humidity change trend if I’m actively tracking it.
Say outside is reading higher than actual and inside is reading under actual and you might miss them being technically the same. I also just got non indicating desiccant so that’s another reason I kinda care.