Smartlife Smart Wi-Fi Wireless Door, Window Sensor Detector

The SmartLife Wi-Fi detector door and window sensor can inform you about the windows' and doors' Opening/Closing status in App. You can check these data anytime and anywhere through Tuya or SmartLife apps. You'll never have to worry about missing any important moment. When the doors and windows are opened or closed, the device is triggered and the push notification is sent to your smartphone regardless of your location. It uses 2x AAA batteries and lasts for a very long time over 365 days (more than a year). It supports voice control through Google Assistant and Alexa.
No need to worry about whether doors/windows are closed or not when you go out. It is easy to check the doors/windows status through Tuya App or SmartLife apps, so you can travel stress-free. If you install more than one door sensor in different places. All the statuses of doors and windows will be displayed simultaneously within the app (Tuya or SmartLife apps). You can also link your door sensor to your smart bulbs through automation via the app so that when doors are opened at night, it can switch on the smart lights automatically. It can also be placed conveniently in drawers, cabinets, gates,  etc. and it won't affect the operations of the structure.