RE: Measuring humidity
DEAR KATHERINE, I bought a clock for around $7 that also had a thermometer and hygrometer built in. The only identifying marks are "CE" and "made in China". I know that these things are not as reliable as the more professional dedicated hygrometers but, when I was considering buying the clock, I saw that 5 out of 10 of them read within a degree in temperature and a few % in humidity. I bought the one "in the middle" (the median in statistical terms) so I feel confident that it is sufficiently accurate to let me know how my darkroom is doing when I coat PT/PD prints. Look in a discount store for clocks with thermometers and hygrometers built in. CHEERS FROM BARBADOS! BOB Please check my website: http://www.bobkiss.com/ "Live as if you are going to die tomorrow. Learn as if you are going to live forever". Mahatma Gandhi -----Original Message----- From: Katharine Thayer [mailto:kthayer@pacifier.com] Sent: Friday, September 15, 2006 10:09 PM To: alt-photo-process-l@usask.ca Subject: Re: Measuring humidity Mark, is this expensive? I want something cheap, as long as it's reasonably reliable. I'm not sure why the remote unit would be necessary or useful to me, since I just want a reading of RH in the air next to the print where it's being coated and exposed, at the time it's being coated and exposed; also, a cumulative readout wouldn't be at all interesting or useful to me. I need it only for this set of tests; I'm not going to be monitoring the humidity all the time, as I don't see any particular need for it in my situation. Camden, I did call the local Radio Shack; they don't have any in right now, but they cost $32 when they do have them. I was relieved to read that you got yours for $15, and will check with hardware stores tomorrow, thanks. Katharine On Sep 15, 2006, at 6:38 PM, Ender100@aol.com wrote: > The nicest hygrometers and most usefull ones are those that have a > remote unit...you can put the remote unit in a humidity chamber and > set the other unit elsewhere and monitor the humidity...they also > have cumulutive readouts, so you can get the average RH too. > > Mark Nelson > > In a message dated 9/15/06 7:39:16 PM, camden@hardyphotography.net > writes: > > >> I got my hydrometer at Ace Hardware for $15. Radio Shack has >> cheap ones too. >> >> Camden Hardy > > > > > > > Mark Nelson > Precision Digital Negatives
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