SEHOMY 1 Pack WiFi Door Sensor Alarm, Smart Door Open Contact Sensor Realtime APP Notification Compatible with Alexa Google Assistant, Home Security for Safety, Wireless Window Detector Burglar Alert

Receive Real-time Alarms Remotely:when door/window is opened or closed, the sensor will push instant notification to your smartphone immediately. so you don't have to worry about your baby going out of house without notice, will easily know when your aged parents leave or arrive home and even can be clear when someone enters your home,shop,office ,etc. Compatible with Google Play, Android and iOS System:No hub required and No fees charge. Convenient for you to detect the status of your doors, windows, cabinets, drawers or anywhere you want to be notified when it is opened or closed. So you can travel or go to work or go to school or go shopping worry-free. Alert message push: Protect your home with open / closed door detection. When the door / window is triggered, you will receive an alarm signal on your phone. Home Security Alarm make House more safety. Easy Installation: No Need to use complicated tools when installation, just use 3M glue to install, firm and durable. The two arrows are opposite, the distance between the two components should be as close as possible, and the closest distance should not affect the opening/closing of the door or window. Low Power warning: The sensor door need with TWO AA Batteries(not include). When the battery level is low, it will automatically push messages through APP to remind you to change the battery, never worry about running out of battery.