Sonoff SNZB-03 Zigbee Motion Sensor

The Sonoff SNZB-03 is a Zigbee 3.0 motion sensor with a 110-degree detection angle and 6-meter range for reliable occupancy detection. The PIR sensor detects human movement within seconds, making it suitable for lighting automation, security alerts, and presence-based routines. The compact design and included mounting bracket enable flexible placement on walls, shelves, or ceilings.

This sensor requires a Zigbee hub to operate, compatible with Sonoff's Zigbee Bridge, the NSPanel Pro, SmartThings, and any standard Zigbee coordinator. The CR2450 battery provides extended operation with typical life of 1-2 years depending on activity levels. The sensor includes a configurable blind time to prevent rapid-fire triggers after initial detection.

The SNZB-03 integrates with major smart home ecosystems through its connected hub, enabling automations in Amazon Alexa, Google Home, SmartThings, and Home Assistant. Common uses include automatic lighting when entering rooms, security alerts when motion is detected during away mode, and energy-saving automations that turn off devices when rooms are unoccupied.