idk, ive heard a lot of bad things from them, i would suggest a new thermostate, they make plent but for a good one your lookin at least i would say 75 dallers. Heres a bunch of links, number one will be the cheapest but these all are suppossed to be the best of the best.

1.Ranco thermostat, $88 shipped. http://www.pvccages.com/id183.htm
2.Spider robotics $100ish. http://www.spyderrobotics.com/products/herpstat.html
3.the best of the best Helix DBS-1000 http://www.helixcontrols.com/DBS1000.htm
4.The big Cahoowna, Very expencive, $500, but can regulate almost everything
http://ecozonevivarium.com/products-...ntrollers.aspx