The Lux CS1 is a feature rich smart thermostat that is easy on your pocket. The CS1 is designed to blend in with any decor and has an easy to read display with large letters. The Home and Away Aware feature ensures comfort when needed while saving energy. The CS1 connects effortlessly with Amazon Alexa and the Google Assistant and iOS and Android Apps. Designed for use with most heating and cooling system types including forced air gas oil electric furnaces up to 2H/1C and heat pump systems with or without aux/emergency heat. Works with a C-wire power system. Works with Heat/Cool systems with a gas or propane furnace without a c-wire via the included Power Wire. Room temperature offline and filter replacement alerts. Energy usage and runtime Smart reports. Personalization settings include energy savings sleep quality air quality pet owner peace of mind.