Description: • Brand New Honeywell Home T4 Pro Thermostat (Model: TH4110U2005) • Programmable and easy-to-use interface • Compatible with 1 Heat / 1 Cool Heat Pump or 1 Heat / 1 Cool Conventional systems • Works with 24 VAC systems – Battery or Hardwired operation • ProSeries design with sleek and modern look • Actual Size: 4.09” x 4.09” x 1.06” • For professional installation only (5-year warranty valid if installed by a professional) • Perfect for home upgrades or replacements Keywords: Honeywell Thermostat, Programmable Thermostat, Smart Home Device, Heating and Cooling, HVAC Thermostat, Honeywell Home ProSeries, Energy-Saving Thermostat, New Thermostat, Wall Thermostat, Digital Thermostat, Home Automation Accessory, Smart Temperature Control