Mengshen 2 Pack WiFi Door Window Sensors Smart Window Contact Sensor with App Alert Door Window Open Detector with Notification Alerts Compatible with Alexa Google Assistant

["【Real-time Notification】The WiFi Door and Window Alarm Sensor provides a reliable notification system, ensuring your home, office, or store is protected against unauthorized entry, ideal for theft prevention. Whenever door/window is opened or closed, your phone will receive a real-time alert. When you're away, you can also use your phone to check whether the doors and windows at home are closed.","【WiFi Door Sensor】No hub needed, compatible with \"Tuya\" and \"Smart Life \" App. No hidden fees—simply use the app to monitor your home anytime, giving you complete peace of mind.","【Versatile Installation】Easily mounted on doors, windows, drawers, file cabinets, and safes, the WiFi door and window alarm sensor caters to various security needs across different locations like homes, shops, and hotels.","【Low Battery Notification】The WiFi Door and Window Alarm Sensor features a low battery alert system, prompting users to replace batteries in a timely manner to maintain optimal performance and security. 2*AAAbattery powered(Include).","【Support Voice Control】Compatible with Amazon Alexa and Google Assistant. For example, you could say, \"Alexa, is the door closed/opened?\"."]