HONEYWELL thermostat #TH5220D1029 Model - TH5220D1029 This is manufactured in United States Non-programmable digital thermostat Large, Clear Backlit Digital Display - Easy-to-read in various lighting conditions Precise Comfort Control - Maintains consistent comfort to the highest level of accuracy Easy-access Battery Replacement - Flip-out door allows for easy battery replacement without removing or disassembling the thermostat Dual-powered (battery and / or hardware) Non-programmable digital thermostat Large, Clear Backlit Digital Display - Easy-to-read in various lighting conditions Precise Comfort Control - Maintains consistent comfort to the highest level of accuracy Easy-access Battery Replacement - Flip-out door allows for easy battery replacement without removing or disassembling the thermostat Dual-powered (battery and / or hardware)