I have a Herpstat Thermostat in great condition for sale. I'm asking $100 obo. I used this for about 1 year. I set it up, got my temperature right and then didn't touch it for a year, it held the temperature exactly where I set it and I never had any problems with it. I'm going to try and sell it here first but if I can't it's going on ebay. I have everything it came with including box, instructions, temperature probe, and the thermostat itself. Any questions e-mail me at jdatphhs@hotmail.com. Shipping will be $5 and insurance if you want will be another $5. Thanks, Jerry

http://spyderrobotics.com/products/herpstat.html this is the description of the unit I have.