Samsung SmartThings Arrival Sensor Get alerts when people and pets approach and leave a specified area, such as a home or office. Trigger different actions to take place when you arrive or leave home Be notified if someone doesn't arrive home by a certain time and operating temperature (degrees Fahrenheit) is 41 to 95 degree This version has a more minimal profile than the original SmartSense Presence sensor. Additional Requirements: Samsung SmartThings Hub