"These are easy to install, easy to read, attractive gauges that are visible even when a cage walls are misty, etc. I use an electronic gauge on one end of my Redfoots habitat, and often have trouble reading it.
These gauges are not necessarily accurate to the decimal point, but they are plenty accurate enough to monitor conditions.
My ONLY complaint about them is that it is easy to mistake which is temp and which is humidity. I'm going to paint a big H on one and a T on the other.
I currently plan on replacing my electronic gauge with another set of these!"