Hi Carl,
It is probably better to go to the website and pull up all of the choices with all of the respective information. Here is a link, I always recommend the PRO 8000 series thermostats because I have had success with them and they are easier to manipulate.
Here is a link to the residential thermostat pages.
http://customer.honeywell.com/Honeywell/UI/Pages/Catalog/ApplicationCategory.aspx?Catalog=Homes&Category=Thermostats_102&ChannelID=%7b2EB2F178-20ED-44E0-97FB-CCFB4218DD64%7d
Thanks
Mark
Journeyman Technician
UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential