I bought a hygrometer with my first 10 gallon terrarium, a Critterz, at the pet shop for $6. Today I found a Springfield digital thermometer/hygrometer with high/low readout at WalMart for $6.50, but since the readings were so differant, while I was at Lowes this evening, I bought a cheap, $3.50, combo. I put all three side by side in my house and then in a container with wet paper towels heated on my terrarium light hood to raise humidity levels. Last I put them outside.
The hygrometers compare as follows:
- Combo Digital Critterz Temp
- 37% 30% 47% 75F
- 62% 48% 62%
- 75% 58% 70% 80F
- 98% 72% 83% walls and lid fogged up
- 95% 75% 85% 87F
- 84% 83% 72% 92F removed from heat
- 108% 68% 80% 85F
- 110% 75% 87% 79F picture taken
- 110% 84% 94% 75F 15 min later
- 36% 43% 53% 44F
This last set of readings is from outside. The Weather Channel says the humidity at the airport is 29% and 48F while at this local home station, (much closer to my house) it's reporting 44% and 38F.
Soooo, which hygrometer do I believe? The round is the Critterz, square is the digital and the combo...is long, LOL!