1、Smart Sensor: Control with the corresponding app. Get app notifications on your smartphone when door or window opened or closed. Door sensor only works with 2.4GHz WiFi, not compatible with 5G. 2、Remote Control: The home security sensor allows you to control home appliance by asking questions, also allows for APP and USB power supply remote control, easy to operate and get real time status updates. 3、Easy Installation: Use the included stickers to install the smart door sensor securely on doors, mailboxes, refrigerators, drawers, bedrooms, garages, yards, pet doors, and more. 4、Anti Dismantle Protection: The home window sensor is equipped with a anti tamper function to push notifications to your phone if any tampering is detected, ensuring the security of your door and window. 5、Real Time Notification Push: The smart door sensor detects door and window status and receive real time push notifications on your phone when doors open or close, keeping you informed of any changes. Item Type: Door Window Sensor Material: ABS Usage: Detect the open/closed status of door and window Power Supply: DC5V via USB port or 1 x Built in CR123A 800mAh Battery (Battery Included) Charging Voltage: DC 5V Compatibility: For 300 series and for 500 series Range: Outdoor up to 80m / 262.5ft, indoor up to 45m / 147.6ft Function: Anti Tamper Function with Notification Push USB Power: 5V/1A Standby Current: 8uA 1 x Door Window Sensor Main Unit 1 x Door Window Sensor Sub Unit 2 x Double Sided Adhesive 4 x Screws 4 x Wall Plugs 1 x Charger 1 x Instruction Manual