Feature 1、【Enjoy Your Smart Life】When you leave home, it will push notification message to you when the door/window opens, so you can discover the intruder in time. 2、【APP Remote Control】Download app \"Smart Life\" from GooglePlay or App Store to add the device to detect the status of your door/window. Home security in your hand all the time. 3、【Share Control \u0026 History Records Tracking】You could share the device to your family members and track the history of sensor activities. Features: 【Enjoy Your Smart Life】When you leave home, it will push notification message to you when the door/window opens, so you can discover the intruder in time. 【APP Remote Control】Download app "Smart Life" from GooglePlay or App Store to add the device to detect the status of your door/window. Home security in your hand all the time. 【Share Control & History Records Tracking】You could share the device to your family members and track the history of sensor activities. 【Easy to Install】No complicated installation tools are required. The sensor can be installed in just a few steps. 【Smart Voice Control】Compatible with Alexa & Home, IFTTT. Simply use your voice to control the connected devices. Convenient for you to detect your doors, windows, cabinets, drawers or anywhere you want to notified when it is opened or closed. Specifications: Detect open/close status of the door/window Power Supply: DC5V Battery: lithium battery (included) Standby Current: 13uA Alarm Distance: ≥1cm Protocol: IEEE 802.11b/g/n Wireless Type: 2.4GHz APP: SmartLife/Tuya Support systems: Android and IOS Material: Superior ABS Operating Temperature: 0℃~ 60℃ Operating Humidity: 20% ~85% Package Size: Approach. 9.5*7.5*2cm / 3.7*3*0.8in Package Weight: Approach. 65g / 2.3oz Package List: 1 * Wireless Door/Window Detector Package List 1 * Wireless Door/Window Detector