

The Sonoff SNZB-04 is a Zigbee-based contact sensor designed to detect the opening and closing of doors, windows, cabinets, and other entry points. It provides real-time alerts and integrates seamlessly with smart home automation to enhance security and convenience. Compact and battery-powered, the SNZB-04 is compatible with Sonoff Zigbee hubs, Home Assistant (ZHA & Zigbee2MQTT), and other Zigbee-enabled platforms.
We prioritize the security of your personal information and transactions. Our store implements indu
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
Zigbee 3.0 Connectivity: Ensures a fast, reliable, and energy-efficient connection.
Real-Time Open/Close Detection: Sends instant notifications via the eWeLink app when a door or window is opened or closed.
Smart Automation Triggers:
Turn on lights or alarms when a door is opened.
Activate security systems when unauthorized entry is detected.
Integrate with smart locks for enhanced security.
Adjust HVAC settings based on window status to save energy.
Battery-Powered & Long-Lasting: Uses a CR2032 coin battery, lasting up to 2 years under normal use.
Wide Compatibility: Works with:
Sonoff Zigbee Bridge / Bridge Pro
Home Assistant (Zigbee2MQTT & ZHA)
Amazon Echo devices with built-in Zigbee hubs
Other Zigbee 3.0 gateways
Easy Installation: Tool-free setup with strong adhesive backing, allowing placement on doors, windows, cabinets, drawers, safes, and more.
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