GREENBLUE GB479 B Wireless Wi-Fi Door/Window Sensor - White

Keep an eye on your home's entry points from anywhere with the GREENBLUE GB479 B Wireless Wi-Fi Door/Window Sensor. Mounted on a door or window frame, this compact sensor detects when the magnetic contact is broken and immediately sends a push notification to your smartphone via the Tuya Smart or Smart Life app. Ideal for apartments, houses, offices, or vacation rentals, it adds a simple layer of security without complex wiring.

Key specifications

• Wireless Wi-Fi connectivity (IEEE 802.11b/g/n, 2.4 GHz)
• Magnetic contact sensor for open/close detection
• Powered by 2x AAA batteries (included), lasting up to 12 months
• Works with Tuya Smart and Smart Life apps
• Voice control via Amazon Alexa and Google Assistant
• Installation with adhesive tape or screws
• Low battery alert and scene linkage automation
• White ABS plastic housing, operating temperature -10°C to 50°C

Why choose it

The GB479 B offers a hassle-free way to monitor doors and windows without a separate hub. Its direct Wi-Fi connection means you can receive alerts and check status from your phone no matter where you are. The sensor's long battery life and easy installation make it a practical choice for renters and homeowners alike.

Ideal use cases

• Front door or back door security
• Window monitoring for ground-floor rooms
• Cabinet or drawer alerts for sensitive items
• Vacation rental check-in/check-out notifications
• Integrating with smart home scenes (e.g., turn on lights when door opens)

Good to know

The sensor pairs with the free Tuya Smart or Smart Life app, and supports scene linkage to trigger other smart devices. Battery life depends on usage and environmental factors, typically lasting 6-12 months. The maximum detection gap between sensor and magnet is 15 mm. Operating humidity range is 10% to 90% RH (non-condensing).