Item Type: Smart Door Window Sensor pRODUCT Material: ABS Color: As Pictures Shown Weight: Approx. 32g / 1.1oz Battery: 1 x CR2032 Button Battery 150mAh (Included) Working Current: ≤ 60mA Operating Temperature: -10℃ - 55℃ Operating Humidity: 10% - 90%RH Wireless: for Zigbee 1、Real Time Viewing Via Mobile Phone: When going shopping or going to work on business, you can't remember which doors and window are open and close. At this time, you can click your mobile phone to check the opening and closing status to reassure yourself. 2、Home Security: Children often like to keep busy in the kitchen, living room and bedroom, or sneak out to play, or go to the bathroom to play with water. With this door and window sensor, the voice will tell you whether the child has slipped out. 3、Mobile App Remote Push Alarm: The mobile phone will be pushed to you in time with the information about opening and closing doors and window at home when you go out and work. 4、Simple Operation: Touch the door and window sensor, and the mobile phone sets the scene linkage, so that the lights, monitors, purifiers and stereos at home can "work" according to your wishes. 5、Sensor Anti Disassembly Alarm: When the door and window sensor is removed and pried, the mobile phone client will receive a prompt in time. 2 x Door Magnet 1 x Double Sided Adhesive 1 x Manual 1 x Ejector