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Author Topic: Accuratly measuring humidity  (Read 1451 times)

veda_sticks

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Accuratly measuring humidity
« on: May 19, 2009, 07:45:59 PM »

I see lots of posts complaing of low humidity when infact readings have been inacurate.

Alot of peple dont seem to relise that hygrometers are only acurate over a small range. when you look for a hygrometer you need an anolgue gauge that you can calibrate. Wrap it in a damp towel for 1 hour then adjust to read 99% after 1 hour. Also make sure its not over any of the holes in your terrarium otherwise it could read the rh of the outside air.

Avoid cheap digital metres which are generaly crap. Ive seen lots of digital metere produce very different results in the same terrarium. Ive even seen 3 of the exact same digitals in the same terrarium produce complelty different readings, not just with RH but temp too.
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