Honeywell Non-Programmable Digital Thermostat reliable and precise temperature control for your home. Designed for use with central gas, oil, or electric furnaces and air conditioning systems, this thermostat supports digital 2 heat/1 cool configurations and is compatible with millivolt systems. It provides accurate temperature regulation within plus or minus one degree, ensuring your comfort throughout the year. The thermostat is easy to install and features a compact design with dimensions of 2.9 inches wide, 4.7 inches high, and 1.1 inch deep, finished in a clean white color. It operates on 2 AAA batteries and comes packaged in a convenient clamshell for protection and display. Model Number: RTH111B1016/E1