Tuya Door Sensor WIFI Remote Alarm Reminder $ 10.19 Product information: Product size: 702016MM Color box size: 752218MM Product net weight: 65g Product gross weight: 70g Features: Door and window switch. Mobile App remote notification Simple and convenient to use Supports intelligent voice control such as Amazon Alexa, Google Assistant, IFTTT, etc. Display power, alarm management, alarm query Query history Mini portable size Packing list: Door sensor1 pair Manual 1 Double-sided tape*1