HONEYWELL thermostat #TH5220D1029</br>Model - TH5220D1029</br>This is manufactured in United States</br>Non-programmable digital thermostat</br>Large?? Clear Backlit Digital Display - Easy-to-read in various lighting conditions</br>Precise Comfort Control - Maintains consistent comfort to the highest level of accuracy</br>Easy-access Battery Replacement - Flip-out door allows for easy battery replacement without removing or disassembling the thermostat</br>Dual-powered (battery and / or hardware)</br></br>Product Description</br></br>HONEYWELL -- white. Dimensions: 5-13/16 inch W x 1-1/2 inch D x 3-D/16 inch h. Precise comfort control (+/- 1F) up to 2 stage heat?? 2 stage cool. Changeover: auto/manual selectable. Terminal designations: RC?? R?? W (O/b)?? W2 (aux)?? y?? Y2 (e)?? G?? L?? c. Voltage: 24 Volts. Ecosource exclusive. Min. Order: 1 ea.</br><br/>http://www.amazon.com/gp/product/B000TD1JVC