The Latest Smart Thermostat Knows When You're Away from Home

Smart home thermostats are becoming quite common and, for the Nest at least, downright popular. But most of these systems only monitor from one direction—that is, the user remotely checking the home. The new Wi-Fi-equipped Ecobee 3 system, however, works both ways; the device is watching its watchers with remote… »9/16/14 8:00am9/16/14 8:00am