Honeywell TH4110D1007 PRO 5-2 Programmable Thermostat. This thermostat is part of the PRO series that provides programmable thermostats for 24 Vac conventional and heat pump systems. It's multiple programming options help fit your lifestyle for 5-2 weekdays and weekend programming so you can vary the settings for weekdays and weekends depending on your schedule. Honeywell TH4110D1007 PRO 5-2 Programmable Thermostat Digital display screen is back-lit to make it easily readable. This TH4110D1007 can be programmed in less than five minutes. It has an Adaptive Intelligent Recovery and ensures programmed temperature is reached by programmed time. Honeywell is the global leader in HVAC (heating, Ventilation, Air Conditioning) product. Honeywell invents and manufactures product for the HVAC industry. They master new technologies that address the tough challenges such as safety, security, and energy efficiency. As a world leader they have an unrelenting focus on quality, delivery, value and technology in every product they make. Honeywell is a fortune 100 company that has over 130,000 employees including nearly 20,000 engineers and scientists.