Lyz, I have a total of 5 thermometers in the box. I just have the digital next to the thermostat to get an idea what temp it is turning in and off at. Not perfect but the best I can come up with at the moment. I work for a major University and they are planning on closing down the Ag Dept. No telling what sort of lab equipment will be going in the dumpster. Temperature sensors that can be placed on the exact surface you want to monitor. machines that will chart the temp second by second. heat sources that are not even very well known. Humidity generating equipment, filters, purifiers, monitors, pumps, you name it. they can take the fun out of anything. They hang stuff all over the walls labeled something like. "Factors in morbidity of tyrannosaurs Rex ranged on indigenous foliage" and then hang pictures around it of weeds soaking in laboratory beakers and what not. Never have understood much of the rest of it.