Honeywell YTH9421C1010 Visionpro IAQ Programmable Universal Thermostat

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Advanced dual-fuel controlThree wires to the living space allows for easy equipment upgrade without having to run additional thermostat wireThermostat connects with Equipment Inter face Module or EnviraZONE panel to control temperature, humidification, dehumidification and ventilation from a single point in the homeAutomatically raises humidity levels throughout all rooms in the home, moisturizing air to prevent symptoms of dryness and to protect hardwood flooring and woodwork Show more