The Honeywell TH421OU2002 Programmable Thermostat is a white, wall-mounted device that operates on battery power (AA batteries). It is designed for use with Honeywell systems and features a 6-wire wire configuration. This thermostat allows for automatic system switching and offers programmability for both heat and cool stages. With a digital display and push-button control style, it is a convenient and efficient option for maintaining optimal indoor temperatures. Additionally, it includes features such as automatic changeover, battery backup, and Z-Wave compatibility for added convenience and functionality.
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