Features:<br> 【Enjoy Your Smart Life】When you leave home, it will push notification message to you when the door/window opens or closes, so you can discover the intruder in time.<br><br>  【Smart Voice Control】Compatible with Alexa & Google Home. Simply use your voice to control the connected devices. It can also perform auto control together with other smart devices which are compatible with Smart Life or TUYA APP. Convenient for you to detect your doors, windows, cabinets, drawers or anywhere you want to notified when it is opened or closed.<br><br> 【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. <br><br> 【Share Control & History Records Tracking】You could share the device to your family members and track the history of sensor activities.<br><br> 【Easy to Install】No complicated installation tools are required. The sensor can be installed with double-sided adhesive tape or screws(included) in just a few steps.<br><br> 【Multiple Uses】Install the Alarm Sensor not only on front doors or windows, but also on garage doors, liquor cabinets, front gate, safety deposit box, pet doors and more.<br><br><br> Specifications:<br> Power Supply: 2*AAA 1.5V(not included) <br> Standby Current: ≤5μA<br> Standby Time: 4-6months<br> Wireless Range: 50m(open area)<br> Alarm Distance: ≥1cm<br> Protocol: IEEE 802.11b/g/n<br> Wireless Type: 2.4GHz,NOT 5 G<br> APP: SmartLife/Tuya <br> Material: Superior ABS <br> Operating Temperature: -10℃~ 40℃<br> Operating Humidity: 20% ~85%