The Sonoff SNZB-04P uses Zigbee 3.0 to provide instant notifications when a door or window is opened or closed. It integrates with Sonoff Zigbee hubs and the eWeLink app, enabling users to automate lights, alarms, or cameras based on entry activity. With over 5 years of battery life and tamper alerts, it’s a reliable and discreet security solution.
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This sensor consists of two parts: a main sensor body and a magnetic contact. When the magnetic field is broken—such as when a door or window opens—the sensor sends a Zigbee signal to a connected hub. It supports local smart scenes, meaning automations can still function even if the internet is down (when paired with a hub like the Zigbee Bridge Pro or iHost).
The SNZB-04P includes a tamper alert feature, which notifies users if someone tries to remove or tamper with the device. It’s powered by a CR2032 coin cell battery, offering ultra-low power consumption and long-lasting performance.
Installation is simple with adhesive backing, and its compact white design blends seamlessly into most interiors.
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