I just wanted to tell you guys that Dion Brewington and Spyder Robotics are some great people to deal with. I have a Herpstat 2 that I've had for 2 years. Yesterday, my house was hit by lightning and the Herpstat 2 went belly up. I contacted Mr. Brewington and he is selling me a new one at a substantial discount, with the condition that I send him the fried one back for him to look at on possibly how to improve his product. I thought this was great and I really appreciate his kindness.
If you need a great tstat, Herpstats work as advertised and are good products. Up until the lightning, I've never had a problem and it keeps my temps dead-on.