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Overview
The SONOFF SNZB-03PR2 is a low-power indoor motion sensor, also sold as SenseGuard Motion Gen2. It keeps watch over a hallway, staircase, doorway or entrance, and reports movement alongside light levels. A lamp can therefore switch on only in the dark and turn off again once the area is empty.
It rests on the supplied base and can be fixed with adhesive or magnets, so you can point it at the doorway without drilling.
- At a glance
- Brand
- SONOFF
- Model
- SNZB-03PR2
- Connects with
- Zigbee
- Model
- SNZB-03PR2 (SenseGuard Motion Gen2)
- Detection
- passive infrared, about 6 m range, field of view about 110–120°
- Recommended mounting height
- up to about 2 m
What it does
Passive infrared detection reaching about 6 metres, well matched to corridors and stairs
A separate light sensor that reports lux, used alone or together with motion
Cooldown you can set between 5 and 60 seconds, keeping busy passages from flooding the network
Up to six months of light history viewable in the eWeLink app
Occupancy and illuminance available in Home Assistant via Zigbee2MQTT
A single CR2477 coin cell, with a rated life of up to 3 years
Specifications
From the manufacturer's data. Check the label on the device if your installation depends on a rating.
| Model | SNZB-03PR2 (SenseGuard Motion Gen2) |
|---|---|
| Detection | passive infrared, about 6 m range, field of view about 110–120° |
| Recommended mounting height | up to about 2 m |
| Power | 1 × CR2477 coin cell |
| Size and weight | 44 × 44 × 65 mm, about 42.7 g with battery |
| Operating range | indoors, −10 °C to 60 °C, 5–95% RH, non-condensing |
| Certifications | CE, FCC, RoHS |
Before you install
- A Zigbee hub or coordinator must be present; there is no Wi-Fi radio.
- Pairing mode stays open for 180 seconds. Holding the button for roughly 5 seconds returns it to pairing mode.
- Alexa and Google Home can reach the sensor only via a supported hub.
