Key features

• •Small body, can hide very well. When you go away, It will push notification message to your phone when the door/window opens and closes. Furthermore, You can set the smart light bulb and camera to start after opening the door. Turn off the lights automatically when you close the door. You can set your own rules.
• •Simply use your voice to control the connected devices by Amazon echo, Iphone Siri or Google home. Convenient for you to detect your doors, windows, garage, cabinets, drawers or anywhere you want to notified when it is opened or closed.
• •The sensor can be installed with double-sided adhesive tape or screws(included) in just a few steps, and download an app "smart life"from Google Play or app store to add the device to detect the status of your door/window. This smart sensor only works with 2.4G Hz Wi-Fi. Wide gap performance allow for up to 1 cm when door/window is closed. The smart sensor works with a CR2 battery(included)
• •A simple way to turn your home into a smarthome: This is probably the world's smallest wifi door sensor. In the 'smart life' app, you can set it up with a variety of smart appliances in your home, such as light bulbs, cameras, electric curtains, pir sensors, and more.
• •No hub required.No monthly charges.You can know status of door by asking alexa or google home. Supported voice command is as below to get the state of the "front door": Alexa, is the front door locked? --Alexa will respond: Yes, the front door is locked/or no. Ok goole, is the front door on?--Ok goole, is the front door off?--Ok goole, is the front door on or off?