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<p>[QUOTE=&quot;Vess1, post: 705078, member: 13650&quot;]Mine gives the temp and the actual RH read out. It was less than $20.&nbsp; Radio Shack has nice ones.</p><p>&nbsp;&nbsp; Using a silica gel pack suitable for keeping 33 cu. ft. dry, I can sustain 25-35% over long periods between recharges.&nbsp; I&#039;ve had bar code stickers fall off albums because of the dry air.</p><p>&nbsp;</p><p>&nbsp;&nbsp; At 45% I recharge the gel.&nbsp; &nbsp; Usually needs to be baked/recharged, twice a year.&nbsp; Especially as they age.&nbsp; I use the large 3x4 bags of it.&nbsp; Not a small pack alone.&nbsp; It&#039;s just not enough to do the job for very long.</p><p>&nbsp;</p><p>&nbsp; Not much out there is completely air-tight.&nbsp; Obviously, the more air that can get in, the faster the gel is exhaused as the two atomospheres continually try to equalize.[/QUOTE]</p><p><br /></p>

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