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hygrometer comparison

Posted: Fri Aug 18, 2017 9:32 am
by mjjluver
This is a head to head comparison between
Thermpro TP50 vs. Holmes (came with my humidifier) vs. Zoomed vs. Zoomed using the salt calibration method

If I did the test right, then that means even the digital one reads low by 9%, but certainly better than the analog ones.

The zoomed hermit crab hygrometer is off (underestimates) by 18% and the other zoomed is off (also underestimates) by a whopping 22%.

The Holmes one was a joke. I threw it out.

The analog temperatures are off by about 1-2% when compared to my Oregon scientific digital one.

Image

https://www.amazon.com/ThermoPro-TP50-D ... B01H1R0K68
https://www.petsmart.com/reptile/enviro ... 16600.html
https://www.amazon.com/Zoo-Med-Economy- ... B004PBB1JE

Here is the temperature comparison
Image

Re: hygrometer comparison

Posted: Fri Aug 18, 2017 5:44 pm
by CallaLily
None of mine have ever been spot on, digital or analog. Definitely need to check all and I recommend rechecking periodically because they can change.