Zigbee Motion Sensor + LUX Sensor

The Zigbee Motion Sensor combines PIR-based movement detection with an ambient light level sensor in a single battery-powered unit. This dual measurement means your automations can respond to both presence and brightness simultaneously — lights trigger only when the room is occupied and actually dark, avoiding unnecessary activation during daylight hours. With a 120-degree detection angle and 8-metre range, it covers a typical room from a single wall or ceiling mount point. The LUX sensor adds a critical layer of intelligence: a hallway light that only activates after sunset, a bathroom fan that triggers on motion regardless of light level, a staircase that illuminates when someone approaches but stays dark when ambient light is sufficient. These conditional automations reduce energy waste while maintaining convenience — the home responds when needed and stays quiet when response would be pointless. Powered by a CR2450 coin cell with low-battery warnings, it installs in minutes with adhesive or screws. It communicates over Zigbee 3.0, joining your mesh network and extending its reach. Note that this is a PIR sensor — it detects motion, not static presence. For rooms where occupants sit still for extended periods, consider the mmWave sensor instead. For corridors, entryways, bathrooms, and anywhere movement is the reliable indicator of occupancy, this sensor is the practical and cost-effective choice.