Tuya wifi smart home system alarm door open sensor Wireless alarm door sensor OEM SMART HOME DOOR/WINDOW SENSOR - Uses smart-home technology to monitor your homes doors and windows, including interior doors, patio doors, garage doors, windows, cabinets, baby gates, and more. Wi-Fi TECHNOLOGY - Working Standalone and also work with Alexa, Google Assistant,IFTTT KNOW IF YOUVE LEFT DOORS/WINDOWS OPEN - Configure your hub to notify you or sound an alarm when any connected door or window is open for too long, including garage doors and medicine cabinet doors INTEGRAL PART OF HOME SECURITY SYSTEM - Program your hub to automate your lights when the front door opens, or kick on security cameras when a window is opened.