I just got my first ball python in a "kit" if you will from the person rehoming her. Animal Plastics t10, Pro Products heat panel, Spyder Robotics Herpstat 2 and the cage goodies. She told me the temps/humidity ranges she researched were best (and have worked for her for a while with this snake) but the probe died on the trip over here so I've been having to play thermostat myself with the heat panel. I was confused on some readings on these AcuRite gauges as the hot side was staying around 90 like she told me, but humidity was lower than the cool side. The temps on the cool side seemed fine but the humidity was higher, even though 1 water dish is nearly under the heat panel, and the other is just to the side of it around the middle of the tank. So, I took the gauges out, removed the batteries, and set them next to each other right here in front of my computer as I type this.

They've had probably 10 minutes to acclimate to where they're sitting and one (the hot side one) is reading 81 f with 43% humidity (the house is probably closer to 75 or so degrees actually) while the cool side one is reading 79 f with 47% humidity. With these 2 gauges being the same model, how can they be so far off from each other? I'm counting on these to help me maintain my new snake's habitat. Is it common for these to have a 3 or 4 degree/humidity reading error range?

I just purchased a locally made enclosure that's essentially an Animal Plastics t10 clone and will be getting some more products to hold a second snake (not sure if I want another ball python or maybe like a kingsnake or something different) so I'll be purchasing more temperature/hygrometer gauges. Should I just buy a 4 pack of something else and toss these or what?