on the measuring guage hygrometer etc most of them i have tried they are all about the same an crappy the way i tell is i put it at a decent spot for 12hours for my male dragon and he would sit up there with his mouth open and his body fully white no stress mark so i know that my temperature should be perfectly good and the humid guage actually work really well but the temeprature im not so sure as you see i did post they are lower then normal as of 85-92 ish is usually the highest but i use a 60watt 75 watt 150watt i have around 3 of each to use and for my male dragon i been using the 75 watt cause thats perfect for him he enjoys it and its not too hot or too cold