Lennox^® programmable and smart thermostats help you maximize the efficiency of your Lennox heating and cooling system. From the iComfort^® S30 ultra smart thermostat to the ComfortSense^® 7500 thermostat, Lennox combines innovation and technology to give you more comfort control than ever before. Lennox iComfort thermostats deliver precise comfort control, holding your home’s temperature to within 0.5°of your chosen setting. The iComfort S30’s and iComfort E30's SmartAway™ Mode helps you stay energy efficient, even when you’re not at home. It uses the GPS in your smartphone to detect when you're leaving and automatically increases system efficiency. When you return, Smart Away changes your system to a normal schedule and more comfortable temperature. Other smart features include Allergen Defender, which monitors the air quality and pollen levels in your zip code and automatically turns the fan on to clean your home's air when outdoor levels are high, and Feels Like™, which takes into account temperature and humidity to make your home feel exactly like you want it. ComfortSense thermostats give you the ability to customize settings for every day of the week, and even let you compare your monthly heating and cooling usage, so you can adjust your settings to reduce energy consumption.