Sonoff SNZB-03PR2 - SenseGuard Gen2 Zigbee Motion Sensor

Zigbee motion sensor with Light Detection — SenseGuard Gen2

Smart automations based on motion and ambient light

The Sonoff SNZB-03PR2 SenseGuard Gen2 is a high-precision Zigbee motion sensor that detects movement and adjusts automations according to ambient light. Compatible with Sonoff Zigbee gateways and platforms such as Alexa, Google Home, and Home Assistant for a safer and more efficient home.

✨ Smart automations that adapt to the environment
The SenseGuard Gen2 doesn't just detect movement — it also measures ambient luminosity to decide whether to trigger the lights. If there is already enough natural light, it keeps the lights off, saving energy. Ideal for hallways, stairs, garages, and entrances. Simple installation with wall frame included.

✔ High-precision PIR sensor — reliably detects movement
✔ Integrated luminosity sensor — avoids triggering lights unnecessarily
✔ Zigbee 3.0 connectivity — low consumption, long range
✔ Compatible with Alexa, Google Home, and Home Assistant (via Zigbee gateway)
✔ eWeLink App with scenes, schedules, and advanced automations
✔ Easy installation with wall frame included
✔ Long-lasting battery (CR2450)

Usage Example

1. Automatic lighting in the hallway

Install the SenseGuard Gen2 on the hallway ceiling. Whenever someone passes, the lights turn on automatically. The luminosity sensor ensures that the lights only turn on when it is dark — during the day, natural light is sufficient and the sensor does not waste energy.

2. Security in the garage

Place the sensor at the garage entrance. Receive notifications on your phone whenever motion is detected and trigger the garage light automatically. Ideal for knowing when someone arrives home or for detecting unauthorized access.

3. Staircase automation

Install a sensor on each floor of the stairs. The light turns on at the correct floor when it detects movement, and turns off after a few minutes without activity. With the luminosity sensor, the staircase lights never turn on during the day.

Product features

Brand: Sonoff
Model: SNZB-03PR2 (SenseGuard Gen2)
Type: Zigbee motion sensor
Sensor: PIR (passive infrared)
Luminosity: Integrated ambient light sensor
Connectivity: Zigbee 3.0 (IEEE 802.15.4)
Power: CR2450 battery (included)
Installation: Wall frame/ceiling mount (included)
Application: eWeLink (via Zigbee gateway), Alexa, Google Home, Home Assistant
Compatibility: Sonoff Zigbee gateways (ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost, ZBDongle)
Certifications: CE, RoHS

What's in the box

✔ 1x Sonoff SNZB-03PR2 - SenseGuard Gen2 motion sensor
✔ 1x CR2450 battery
✔ 1x Wall frame/ceiling mount
✔ 1x Quick installation guide

Barcode: 6979033600638
Reference: SNZB-03PR2

Note: Requires compatible Sonoff Zigbee gateway (not included). The included battery has an estimated life of 2 years, depending on activation frequency and environmental conditions. Install in a sheltered location, not suitable for outdoors without protection.