I bought the zoomed themostat to run 2 6ft sections of flexwatt until my herpstat pro and flexwatt order got here. Well mgreptiles took 2 months to ship my order so I got stuck using the zoomed for my female balls. I had it set up at 93 exactly in the tubs. Temp was good for 2 weeks then one day I was checking temps and the tubs were 128 degrees. No bad burns but two of my girls scales turned brown. I would spend the money and get a johnsons controls thermostat for around 70.00. I got the raw unit and wired my own stuff to it. I could of had some terrible burns. I put the zoomed in the garbage. Another thing the herpstat pro rocks spyder is awesome at what they do. I would highly recommend their therms any day.