Smart Door/Window WiFi Sensor
Magnetic sensor alerts you via push notifications from Simple Home app when a window or door is opened
Can create actions with other Simple Home products to turn on when magnets get separated
Installs in seconds - stick sensors onto surface with included double-sided tape
No need to plug in or charge, runs on 2 AAA batteries (not included)
Low battery alert notifications sent via app
No hub required, works off existing WiFi network
Not compatible with Linux or Windows phones