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 Wester Caliber III Hygro 
		
		
		Can these be calibrated? I got two of them used with a vino purchase and do not have the instructions. 
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 Re: Wester Caliber III Hygro 
		
		
		They are not adjustable. You just have to add or subtract rh% when you salt test them.  Mine are all within 2% either way. 
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 Re: Wester Caliber III Hygro 
		
		
		Thanks, NCRadioMan. Mine are both sitting in a boveda calibration bag and reading 76%. Nice. 
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 Re: Wester Caliber III Hygro 
		
		
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 Re: Wester Caliber III Hygro 
		
		
		They can't be calibrated, but after salt test shouldn't be off more then 2%. I've got 5 of them and they are all within 1% or right on. Battery is easy to change as well. :tu 
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 Re: Wester Caliber III Hygro 
		
		
		Mine are doing well so far. Thank you all for the advice! 
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 Re: Wester Caliber III Hygro 
		
		
		In the FWIW category...  The instructions tell you NOT to salt test, but I did anyway.  Both of mine are now marked one at -1, the other at +2.  Also FWIW, I prefer them by far to the adjustable ones which gave me fits trying to set... 
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