The Wi-Fi-connected ecobee3 thermostat and remote sensors measure temperature and occupancy in multiple locations, resulting in increased comfort when an occupant is home and energy savings when he or she is away. In addition, customers can monitor and control their ecobee3 thermostat anytime, anywhere, using their smartphones, tablets, or computers. In addition, working with its remote sensors, the ecobee3 recognizes which rooms are occupied and automatically adjusts the temperature based on the readings in those rooms. If a user’s schedule changes and he or she leaves the home, the sensors will recognize this and prevent the heating and cooling system(s) from running unnecessarily when a home is empty. The more sensors included, the smarter the ecobee3 becomes at delivering comfort where it matters and savings where it counts. The ecobee3 doesn’t use power stealing, which can result in sudden and unexpected failure, particularly during extreme hot or cold weather. The ecobee3 rather has a consistent power source that is hardwired in — meaning a user can trust the ecobee3 will continue to deliver comfort, regardless of the weather.