[Nhcoll-l] [External] easy way to calibrate temperature humidity sensors

[Tacker, Christopher]

A saturated solution of NaCl in distilled water imposes a relative humidity of about 75%. It works best for a small contained airspace. If you don't have reagent grade materials, it's ok, it just won't be exactly as predicted. But it will be the same for both instruments.

I'll post the reprint when I'm back at my computer. That will give other solutions and the RH% they impose.

Cheers,
Chris Tacker

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Hi!



In our herbaarium we have one quite old and one new temperature humidity sensor.

The data is quite diferent though these sensors are placed in the same spot.



Do you know any good and cheap ways to calibrate those senors?



Best regards!

Lennart Lennuk

Head of collections

Estonian Museum of Natural History

+372 6603404, 56569916


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