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.
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
