Walmart hygrometers and lighters

[sam a]

lightone - 1/10/2010  12:20 AM

Still learning!! how do you do the salt test??

http://www.stogieguys.com/2006/07/stogie-tip-salt-calibration-test.html

[DonM]

Not to be redundant, but I have been using a Western Digital III for a year now, no calibration, on the money and reasonably priced for a quality hygrometer.  I also bought the Little Havana cigar shaped one, it reads 1% higher than the Westenn Digital.   No salt tests, no messing around, they work fine.  Just suggestions

http://www.cigarextras.com/caliberiiidigitalhygrometerwithtemperaturelcddisplay.aspx

[wescat]

wescat - 12/21/2009  10:24 AM

calvarez - 12/21/2009  10:11 AM

All of the hygros have been in a salt test overnight.  Results...

Walmart:  60, 67
Fluker's:  71
Radio Shack:  77

So my ancient RS hygro (15+ years) is the most accurate.  Unfortunately it's freakin' huge.  This is retarded.  I guess there's really no such thing as a useful hygrometer.  I'm going to look at building my own with calibration ability.  And wi-fi.

I currently have 3 hygrometers, one of which I have salt tested 3 times to prove that its readings are repeatable, therefore it is now my reference. I mentally adjust the other 2 against this reference.

I bought some of these, I'll post how accurate they are when I get them in: http://www.cigarbid.com/auction/imagePopup.cfm?imgPic=M-HMC09.jpg&imgTitle=Humi-Care Digital Hygrometer

I like it that they can be calibrated; hopefully they won't exhibit much hysteresis.

Update: I got the 3 new Humicare hygrometers in and calibrated them. The little calibration knob is a little jikky, the "clicks" aren't as precise as I would like – ya get what ya pay for. I was able to get them dead-on within the 65-75 %RH range. I have them in my unit now, at various elevations. So far they seem worth the $15/ea I paid for them.

[calvarez]

I got one of them, and set about to calibrate it.  Got totally crazy results.  I'll start a new thread since it's not a Wal-mart hygro.