This door and window sensors is vital for you to use in your home or other places. With this tool, you can check the sensors status at your mobilephones after connect the Tuya APP, which is utility and intelligent. If you need this product, come and have a try, it will not let you down. Features: Tuya APP remote monitoring: After the correct connection to the Tuya App, you can check the status of your doors or window at your mobilephone easily, let you enjoy the charm of intelligent technology. Wide applications: Not only can this intelligent sensors be installed on window and doors, but it can also be installed on desk drawers, private cash boxes, storage boxes, refrigerators and so on. Intelligent linkage function: You can achieve devices linkage by the Tuya APP, you can achieve multiple device linkage according to your needs. Sound and light dual alarm: It will flashing red and sound to alert you or your neighbors, and at the same time, the APP will immediately received an alert, notifying you that the window of your home were opened. History records tracking function: You can check the status of the sensors on the mobilephone APP at any time. Timing alarm and disalarm function: You can set automatically turn on detection when you are going out and automatically turn off detection when you arrive home. Specifications: Material: ABS Power: 2 * AAA battery (NOT INCLUDED) Working voltage: direct current 3V Quiescent current: 120uA Alarm current: 20mA Alarm sound: >100dB WiFi: IEEE 802.11 b 2.4G Package size: 90 * 50 * 25mm / 3.5 * 2.0 * 1.0in Package weight: 53g / 1.9ounce Packing list: 1 * Door Sensors Set