PLEASE READ THE FOLLOWING DESCRIPTION COMPLETELY. Brand NEW Honeywell Utility Pro Touchscreen Programmable Thermostat Model TH8320UP1011 EXHW00C120000 VERY IMPORTANT!!!!!! Make sure you have 24 volts AC across terminals “R” and “C” before telling me it doesn’t work. The battery is only to keep your programmed schedule, it is not to light the screen. If you are not a HVAC technician and know how to wire thermostats, please contact one before attempting to install these thermostats. These are for PROFESSIONALS, NOT DIY home owners!!!!! **********FREE SHIPPING********** DUE TO THE STATE OF POST OFFICE DELIVERY TIMES, WE CAN SHIP IT PRIORITY MAIL FOR AN ADDITIONAL FEE. IF THAT IS WHAT YOU WANT, PLEASE MESSAGE US AND WE WILL SEND YOU AN INVOICE PRIOR TO YOUR PAYMENT. This has been inspected. All of our items will work as described. If you find any item unsatisfactory, please contact me immediately and we will resolve the issue swiftly. We strive to maintain a 100% positive feedback rating, with our customers feeling confident when they purchase from us. Please ask any and all questions prior to buying. Payment is due via Paypal within 3 days of purchase. Pennsylvania residents pay an additional 6% sales tax. eBay now collects any sales tax that is due. Returns accepted within 14 days, of receiving this item, with the buyer paying return shipping costs. If listing has a quantity, all the boxes may not be in great condition. If this would be a problem for you please ask any questions prior to purchasing. Thank you.