This door sensor alarm is an excellent security addition to any contact structure: front door, window, baby room, garage doors, skylights, safes, etc. Watching the security barrier at the top of the stairs. All the statuses of doors and windows will be displayed simultaneously in the app. 

WiFi Smart Door Sensor Features

• Smart Home Security Sensor
• Programmable Smart Sensor
• Alert Message Notification
• APP Remote Monitor
• Voice Control