Smart Door and Window Sensor: WiFi Door Sensor for Home Security, Free App Alerts, Wireless Contact Sensor, Programmable with Smart Life Devices, Compatible with Alexa, Google Assistant (4-Pack) - Gaoducash, DOOR SENSOR WIFI

• FREE APP ALERTS FOR PEACE OF MIND: No hub required. No extra cost. The window door contact sensor is controlled by Tuya Smart App or Smart Life App. An alert notification will automatic send to you once the sensor triggered. A must have security system accessories VOICE CONTROL: The Smart door sensor is compatible with Amazon Alexa and Google Assistant, Simply give a voice command to check if your door is open or close, such as "Alexa , is the front door open?" SMART HOME AUTOMATION: You can set a condition in the smart scene, Automatically turn on your smart wall switches or lights when door opened. or the air conditioner in your room is turned off once your window is open. More smart devices can be sync as long as they compatible with Smart Life app. SMART SECURITY SENSOR: All alarm record history can be check in app. All the statuses of doors and windows will be displayed simultaneously in the app. Share the device to your families, they can check the status and get notified at the same time INSTALLS IN MOMENTS: The door alarm comes with 2 AAA batteries, metal screws and 3M tape, which make it possible to use directly when you received the package. Just scan the sensor's QR code, give it a name, peel off the 3M mounting tape, press the sensor and magnet to the door and frame, and you have added security to your home or business!, Manufacturer: Gaoducash