Tuya WiFi Smart Door Sensor – Wireless Magnetic Door/Window Open-Closed Detector for Home Automation and Security • 2.4 GHz WiFi – One-click setup, no hub required • Monitor door and window status in real time; receive instant mobile notifications when opened or closed • Smart scene automation: Trigger alerts, activate connected IP cameras (sold separately), or turn on lights when doors open • Remote control via Tuya/Smart Life app from anywhere • Compact design with adhesive mounting – easy to install on doors, windows, drawers, and other surfaces without damaging furniture Specifications: Input Voltage: 3V (LR03 battery) Standby Current: 45 µA Alarm Current: 130 mA Low Voltage Warning: 2.4V WiFi Standard: 802.11 b/g/n