Hygroset of Ohio Cure Cap?

[Helpplease]

I understand the idea of mounting a hygrometer to a lid is not revolutionary, but does anyone have experience with if the hygrometers they use are accurate. Or how about Hygrosets or other brands. I know the internet favors the caliber III, but there are also plenty of reviews that they are not accurate either.

 

[Domestank]

Hey I had the same question so I had to ressurect this thread. I had a cap from Ohio for a while but it stopped working. I found one piece caps from trichromesltd. I got 3 of them and they read within 1% of a boveda 62. Really happy with these. What did you end up going with?