Pre-Owned Vintage Open Box Honeywell 5-1-1 Day Programable Thermostat MODEL CT3500A . Package has been opened. The original outside plastic packaging is in rough shape from being cut open. It also has discoloration and looks bad.  But the Thermostat and inside contents of the package look new. It appears that it was never used. BATTERIES NOT INCLUDED. Please Zoom in Closely on All Photos for More Details about this Thermostat and to See what is included in the package. Enjoy Shopping. Visit often.