Receive real-time notifications through the ecobee app whenever a door or window is opened or closed Pair with the ecobee Smart Thermostat Premium that plays a chime when a SmartSensor is opened With an ecobee Smart Security subscription, the sensor detects if a door or window has been open for more than five minutes and automatically pauses the HVAC system HVAC system resumes operation once the door or window has been closed for more than 30 seconds, ensuring efficient use of energy Detects motion within a 120-degree arc up to 16ft. away, alerting you about unexpected door or window being opened or any motion in your home Keep the SmartSensor near valuables such as drawers, safes, and medicine cabinets to receive instant notifications if they are opened Powered by an easily replaceable battery designed to last up to three years for long-lasting, hassle-free operation