[Calfirecap]

I just did a comparison of four different thermometer/hygrometers in an incubator and got some disturbing results. See below:

Taylor 73 degrees/ 87% RH
Zilla 73 degrees / 51% RH
Exo Terra 70 degrees / 60% RH
Kestril 3500 73.3 degrees / 55.9% RH

So as you can see, there was a great difference between the relative humidities with each of these products. I'll re-take the measurements again sometime in the next few weeks and next time I'll add a sling psychrometer as the control. I just don't have one at home at the moment. So...
My question to you out there is what are you using and why are you using one over the other?

Lawrence

[Vivarium Concepts]

Lawrence,
which of these are digital, and which are analog?
Do any of these have a wired probe?

[Calfirecap]

Cindy,

The Taylor, Zilla, and the Kestril are all digital and the Zilla uses probes. The Exo terra is just one of those little stick-on varieties. The digitals all have fresh batteries as well.

Lawrence

[Vivarium Concepts]

The analog gauges are highly variable, an inaccurate.
The digital gauges that I am familiar with, have the hygrometer portion in the actual body of the unit, therefore you will need to place the entire unit in the enclosure to get your humidity reading.
We will place the unit in a tank periodically to get a reading but do not leave the unit in, as the frog tanks we deal with can range from 80-100% and these units are not waterproof.
I have used the Taylor and Bionaire brand, and I trust them, the others I can not speak of.