Mengshen 4 Pack Smart WiFi Door Window Sensor No Hub Required Wireless Contact Sensor for Home Security Compatible with Tuya Smart Home Devices Alexa and Google Assistant

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About This 🚪【Universal Smart Door Window Sensor】No hub required.Only a 2.4GHz WiFi connection (not compatible with 5G). Just Simply download the 'Tuya' or 'Smart Life' App to conne ct it. Stay informed about the safety of your home no matter where you are. 📱【Never Miss an Alert】Instant smartphone notifications when openings exceed 15mm - monitor your property 24/7 from anywhere. The software will record each data,specific to the duration of door opening and closing. 👍【Easy to Installation】Simply use the included adhesive paper for quick, secure attachment—ensure the surface is clean and dry for optimal adhesion. Install anywhere: doors, windows, drawers, filing cabinets or safes in homes, offices, hotels, warehouses. 🔋【Smart Battery Management】Powered by 2*AAA battery(Not included). Get proactive low-battery notification on your phone when the battery is running out. 💞【Expandable Security System】Seamlessly connects with Tuya, Smart Life, Alexa and Google Home ecosystems - control with voice commands or automate your security routines. Like Alexa/Google is able to answer your question “Is the door open/closed?” Pair with other Tuya devices like sirens/floodlights to trigger 100dB alarms when intrusions occur. Overview Color : 4 Pack Brand : Mengshen Power Source : Battery Powered Noise Level : 100 Decibels Unit Count : 4.0 Count Show more