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