[Compatible with Alexa Google Home] -APP send alarm message and ringtone. Support voice control with Amazon Alexa or Google Assistant. You can control remotely with iOS and Android phone or tablet, if you cannot connect, please contact us. We will teach you how to operate to help you resolve the issue.NOTE: Due to the latest IFTTT regulations, the IFTTT function of this device has been prohibited. [24/7 monitoring]: Door glass sensor can monitor your home continuously. Use it on doors, windows, cabinets, drawers or anywhere you want to be notified when it is opened or closed. Catch every activity and send an alert to your Android or Apple phone. It is easy for you to monitor your home security anytime, anywhere; the device should be used within the signal range of the WiFi router. [Easily enjoy smart lifestyle]: Wide gap performance allow up to 1cm when door / window is closed. No intrusive wires and battery powered, able to be installed in any difficult situation by installing tape or screw (included). Monitor critical points in the home, garage, stores or offices, factories, etc. Plus, share the device with family members and follow the story Fast instant alerts: Support 2.4G wifi connection. When triggered, such as opened, closed or tampered with, instant notification will be reported to your smartphone within 3-10 seconds depending on internet speed. The built-in redial function allows the door sensor to automatically connect to the network after resetting the wifi router. the device must be used within the range of the WiFi signal. [Guarantee] - RoSH, CE certified. 100% premium copper wire. The smart power strip installed with a surge and leakage protection switch; supports overload protection, absorbs sudden huge energy, protect connected equipment from damage. Product description Color: 1 Pack Why choose the door window sensor?Door Window Sensor provides an easy way to monitor critical points in your home or office, such as side doors, windows, garage, safe, cabinet, etc. It connects to 2.4G Wifi directly, no hub required, easy to set up your own security system.Receive instance alert when the door or window is opened, closed or tampered with by your Android / Apple phone, wherever you are. Other advanced features? View the history of doors / windows, sharing what you imagined with a family member with just one click. Low energy consumption, up to 5 years of autonomy. Complies with CE, FCC and ROHS standards. 1 Battery: CR2 (with battery) 2 Standby current: 5uA 3 Standby time: 6 - 10 months 4 Wireless connection type: 2.4 GHz 5 Size: Main body: 71mm x 19mm x 21mm, 40mm x 11mm x 11mm 7 Safety certificate: FCC, CE, Rohs Login: 1 Make sure the network is 2.4G. If there is 2.4g and 5G router, please turn off 5G network and reconnect. Be as close to the Wi-Fi source as possible to make sure the network cannot be connected due to signal issues. 2 Download the " Smart Life " application, click one after the other: Home Upper right corner + (Add device) Add Security and sensors Contact sensors (wifi). Note: Please don't choose ZigBee and Bluetooth.3Connecting in fast flashing mode (press the main button for 5 seconds to switch to fast and slow flashing mode), click " Confirmed light flashing fast " and enter the password to start pairing.