Yea, i have one of those for my incubator also... They arent that great.. Go to walmart and pick up a few "accurite" Thermometer/hygrometers.... They read the humidity and temperature. And are very accurate.. I just bought a few, and they are very cheap.. Prices may vary depending on your walmart, but i believe mine only costed $10 each!
Hmm whith part of wallmart LOL im going shoping tommorow and i need couple
1.0 Striped African House Snake "Marduk"
0.1 Striped African House Snake Ishtar
1.0 black phase Brown House Snake Seth
0.1 black phase Brown House Snake Nephthys