Safe'O'Buddy Home Security Wireless Door & Window WiFi Smart Door Sensor for Home Office Wireless Sensor Security System

The wireless door/window sensor is most frequently employed as a component of a smart security system since it is necessary to know who is entering and leaving your home. A Safe O’Buddy two-in-one wireless door/window sensor called the SONOFF SNZB-04 can be installed on your door or window to warn you through alert notification if your door or window has been opened or closed, thereby enhancing the security of your house. The sensor gives you the option to link with smart life and Wi-Fi devices together to form a scene. You no longer need to remember whether the door or window is open or closed because the opening and shutting statuses are synchronized on your phone.