1. Remote Control: The Tuyasmart smart door sensor offers a app mode, supporting WiFi or onetouch AP connection. With a transmission range of up to 45 meters and strong network signal, it ensures stable connectivity. Maintain good signal strength to monitor door/window open/close status anytime, anywhere via the mobile app. 2. Hub Smart Home Compatibility: Works independently without a hub and is compatible with smart home systems. Supports voice control via Alexa or Google Assistant, as well as IFTTT. Control remotely using iOS or Android phones or tablets. 3. Easy Installation: This standalone smart door sensor requires no hub. No screws needed—just use the included doublesided adhesive tape to attach the sensor to doors/windows. The strong adhesive ensures secure placement for reliable access alarm monitoring. 4. Instant Alarm: Connects via WiFi (2.4G only) and your smartphone. Detects abnormal activity and sends realtime alerts to your phone within 3–10 seconds. The door/window sensor provides 24/7 home monitoring, enhancing safety for families and children.