Overview Highlights Original Xiaomi intelligent mini door sensor and window sensor,functional and creative daily home security guard. Small pocket size,very easy to install and use:first,paste the door sensor on the door and the window sensor on the window; Then,open the Xiaomi Smart Home APP,click the "+" on the top right corn Mini door window sensor helps detect whether the door & window is open or not in real time. If someone broke into your home,the alert will remind and take video,keep yours and your propertys safety. Combining doors windows sensor and Xiaomi Yi camera,remote push video functions,when someone burst into your home when you stay out,Xiaomi Yi camera will cut out video which lasts 6 second automati Paste the doors and windows sensor on the window and connect Xiaomi Air Purifier on your phone,then open the window to ventilate early morning,purifier auto standby. Key Attributes Dimensions (Length x Width x Height) 10cm x 5cm x 2cm weight 0.05kg Stock Location Country of Origin Brand home-automation-modules Shipment Information Weight per item 0.05 kg Dimensions per item (LWH) 10 x 5 x 2 cm Carton weight 0.05 kg Carton dimensions (LWH) 8 x 8 x 2 cm Pieces per carton 3 Stock location