Smart Wi-Fi Door Sensor Size:Without Battery Battery: 1 x CR2032 button

Battery: 1 x CR2032 button battery (not included)

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Dimensions: (L x W x D) 15 x 6

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Smart Wi-Fi Door Sensor Size:Without Battery Battery: 1 x CR2032 buttonIntroducing the Smart WiFi Door Sensor, the easy way to keep an eye on your home, office, or rental property. This versatile door sensor can be used to detect when doors and windows are opened or closed, and will instantly send a notification to your phone. With the free Smart Life app, you can check the status of your doors and windows from anywhere in the world! The Smart Wii Door Sensor is also great for security purposes. If someone tries to enter