Smart Home Security Sensor — WiFi Door & Window Sensor (No Hub Required) Why you need it Simple, effective protection for entry points and vulnerable areas. Know instantly when doors or windows open and integrate those events into home automation routines. Reduces risk and worry: get realtime alerts on your phone and use automatic actions (lights, switches, AC) to respond immediately. Key features and benefits Realtime notifications: Receive an alarm on your phone through the Smart Life or Tuya Smart app when a door or window opens. No hub required: Connect directly to your 2.4 GHz WiFi network for fast setup and remote monitoring. Programmable automations: Create routines in the app to trigger other smart devices — for example, turn on lights or wall switches when a door opens, or automatically turn off air conditioning when a window opens. Centralized status view: All door and window statuses are displayed simultaneously in the app for quick monitoring of your home. Voice control: Works with Alexa and Google Assistant for hands operation and status checks. Broad placement options: Designed for use on front doors, windows, baby rooms, garage doors, skylights, safes, and stairway barriers. Compatibility and performance App support: Compatible with Smart Life App and Tuya Smart App (scan the QR code in the user manual to download). Network: Operates on standard 2.4 GHz WiFi for reliable remote control and notifications. Ecosystem integration: Syncs with other smart devices that support the Smart Life ecosystem to extend automation across your home. Practical use scenarios Entry alert: Receive an instant phone alert when the front door opens, then automatically turn on a hallway light at night. Nursery monitoring: Monitor a baby room door and get notified if it opens while your child is sleeping. Energy saver: Automatically switch off the air conditioning when a window is opened to avoid wasted energy. What it does (concise) Monitors open/closed status of doors and windows Sends push notifications to your phone Triggers appbased automations with compatible smart devices Supports voice commands via Alexa or Google Assistant Installation and placement Easy to install on doors, windows, garage doors, skylights, safes, or stairway gates Designed to be used where you need simple, reliable contact sensing and smart automation Use this smart sensor to improve security, convenience, and energy efficiency across your home while keeping setup and daily use straightforward and appdriven.