SONOFF SenseGuard Motion Gen2 Zigbee Motion Sensor SNZB-03PR2
SONOFF SenseGuard Motion Gen2 Zigbee Motion Sensor SNZB-03PR2
The SONOFF SenseGuard Motion Gen2 SNZB-03PR2 motion sensor uses PIR technology for rapid motion detection and smart home automation. It detects motion within 3 seconds, and the repeat detection interval can be set between 5 and 60 seconds. A separate light sensor measures the ambient light intensity and allows you to combine the lux value with motion detection, for example, to automatically turn on the lights. The sensor communicates via Zigbee, offers a detection range of up to 6m, and its position can be adjusted using the adjustable magnetic base.
Key Features of the SONOFF SNZB-03PR2 Motion Sensor
- PIR sensor for rapid motion detection
- Motion detection within 3 seconds
- Adjustable detection interval of 5–60 seconds
- Separate light sensor with lux measurement
- Light sensor calibration
- Up to 6 months of light intensity history
- Motion detection range up to 6m
- Wide detection angle
- Smart scenes based on motion and light intensity
- Security automation with notifications, alarms, or camera activation
- Adjustable sensor direction
- Magnetic, adhesive, or screw-mounted installation
- Can be used free-standing
- Connection to Apple Home via a compatible Matter Bridge
- Support for open smart home platforms
- Zigbee / IEEE 802.15.4
- Communication range up to 100m in open space
- Powered by a CR2477 battery
- Dimensions 44×44×65mm
- Weight 42.7g including battery
Rapid Motion Detection with an Adjustable Interval
PIR technology reacts to human movement based on changes in the surrounding infrared radiation. The SONOFF SNZB-03PR2 can detect motion within 3 seconds, and the interval between individual detections can be set from 5 to 60 seconds. Adjusting the interval helps to tailor the frequency of automation triggers to the specific space and its usage.
Separate Light Sensor for More Precise Automation
The integrated lux sensor measures ambient light intensity independently of motion detection and also supports calibration. The light level can be used as a condition for a smart scene and combined with information about detected motion. For example, the lights can automatically turn on only after dark and when a person arrives. The history of measured light levels can cover up to 6 months.
Wide Coverage with a Range of up to 6 Metres
The PIR sensor covers an area up to a distance of approximately 6 metres and is suitable for places like hallways, staircases, or near entrance doors. The wide field of view allows it to capture movement in a larger part of the monitored area. Detection can be affected by ambient temperature conditions, obstacles in front of the sensor, or very slow or, conversely, very fast movement.
Smart Home Security
The motion sensor can also be used as a trigger for security scenes. When motion is detected, automation can activate the alarm of a compatible Zigbee gateway, send a notification to the app, or start recording on a connected camera. The specific options depend on the Zigbee gateway used and the connected devices.
Flexible Installation to Suit Your Space
You can place the SONOFF SenseGuard Motion Gen2 on a suitable surface or mount it using the magnetic base, adhesive tape, or screws. The adjustable sensor position allows you to aim the detection area exactly where you need it. Proper aiming can also limit the space where pets move—however, it is not a sensor resistant to false detections caused by animals, as PIR can also react to their body heat. A separately sold case is available for recessed ceiling installation.
Connect to Apple Home via a Matter Bridge
The Zigbee sensor can also be integrated into the Apple Home ecosystem via a compatible Matter Bridge. For the connection, you can use, for example, the SONOFF ZBBridge-U, iHost, NSPanel Pro, or a solution with Cube OS. The SNZB-03PR2 itself is not a Matter device—it is brought into the Matter ecosystem via a compatible gateway.
Support for Open Platforms
The sensor is based on the Zigbee 3.0 standard and can also be used with selected third-party platforms and Zigbee coordinators. This compatibility allows the SNZB-03PR2 to be integrated into more open smart home systems, for example. For ZHA and SmartThings, adding this specific model currently requires a corresponding script. Additionally, the availability of light measurement may vary depending on the gateway used.
Battery-Powered for Easy Placement
The sensor is powered by a single 3V CR2477 coin-cell battery, so it doesn't require a power cable. Thanks to its battery operation, it can be easily placed even where a power socket is not available. The sensor's status and functions are then transmitted via the Zigbee network to a compatible gateway.
Specifications
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Motion detection
Use
Specifications can be changed without notice. Images are for illustrative purposes only.
