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Expert4House – Smart Home Automation
Sonoff SenseGuard Motion Gen2 Smart Zigbee Motion Sensor SNZB-03PR2
€15.90
€20.90
Save €5.00Tax included
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Average rating:
5/5
Number of reviews: 1
- 120° and 6-meter coverage: the PIR sensor detects motion within 3 seconds of passing.
- 5 to 60 seconds cooldown: the minimum interval between two activations is adjustable to avoid constant retriggers and false alarms.
- Independent light sensor: measures ambient light separately from the PIR, with thresholds set in lux.
- Light history up to 6 months: logs room illumination changes to fine-tune automations using real data.
- Does not work on its own: requires a compatible SONOFF Zigbee hub, sold separately; without a hub it will not connect to the eWeLink app.
- Zigbee 3.0: integrates with a wide range of third-party and open-source platforms, without being locked to a single ecosystem.
- Apple Home via Matter Bridge: a compatible hub acting as a bridge is required; the sensor alone will not appear in Home.
- ZHA and SmartThings: currently require a script for recognition, as documented in the SONOFF Help Center.
- Security scenes: on each intrusion it triggers the alarm on the gateway, sends an app notification, and starts camera recording.
- Three mounting methods: magnetic, adhesive, or screw mounting, so you can reposition it until you find the right angle.
- Ceiling mounting: supported with the dedicated housing, which is sold separately.
- Pet-friendly: as stated by the manufacturer; actual results depend on height and orientation.
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Delivery within 48 hours: Free shipping on orders over €150 across Europe
Easy 14-day returns: follow the steps to get your refund
Sonoff SenseGuard Motion Gen2 SNZB-03PR2: Zigbee Motion Sensor with Independent Light Sensor
The SONOFF SNZB-03PR2 is the second generation of Sonoff's Zigbee motion sensor , the SenseGuard Motion Gen2 series. It is used to make something happen when someone passes by: turn on a light, set off an alarm, start a recording. Compared to a classic PIR sensor, it adds two things that change the result. The first is the cooldown adjustable from 5 to 60 seconds , that is, the minimum interval between two activations: it is the parameter that prevents the light from flashing all evening in a corridor. The second is an independent light sensor , which measures the ambient light on its own and allows automations that only trigger in the dark , with thresholds in lux and a history of up to 6 months . It covers 120° up to 6 meters and detects motion within 3 seconds . It is battery- powered and requires a compatible SONOFF Zigbee hub : it does not work alone.
Six Functions in One Sensor: PIR, Light, Cooldown, Zigbee 3.0 and Security Scenes
The grid summarizes the sensor at a glance: PIR motion detection , customizable cooldown , light sensor with history recording, up to 3 years of battery life , Zigbee 3.0 protocol and automatic security scenes . Coverage is 120° over a 6-meter radius.
3-Second Motion Detection with Adjustable Cooldown from 5 to 60 Seconds
The device detects motion within 3 seconds . The interval between two activations is adjustable from 5 to 60 seconds : this parameter determines how often the sensor can trigger an automation . Raising it prevents false alarms and continuous reactivations in areas where there is frequent traffic. Lowering it ensures a quicker response where reactivity is needed. It's the difference between a light that turns on when needed and one that flashes all night.
Independent Light Sensor with Lux Thresholds and Lighting History for up to 6 Months
The light sensor is independent of the PIR : it measures the ambient light on its own. Accuracy has improved compared to the previous generation, with calibration and historical recording of light variations in the home. The conditions are set in lux and the history reaches 6 months . This is ideal for nighttime lighting : the light turns on when someone passes by only when the room is truly dark.
Gateway Alarm, App Notification and Camera Recording on Every Intrusion
When the sensor detects an intrusion , it immediately activates a chain of security scenes : it sounds the alarm on the gateway , sends a notification to the app , and starts recording a Sonoff camera . The three actions are configured only once and then work together. This is the case in which the cooldown should be kept low: at night, in an empty room, every movement counts. You need a compatible Zigbee hub and devices already on the network.
Magnet, Double-Sided or Screw Installation, with Optional Ceiling Mount
The sensor can be mounted in three ways: magnetic , double-sided adhesive , or screw-on . The magnet is convenient for repositioning it until you find the right angle; the screw is for where it needs to stay in place. It is pet-friendly . For ceiling mounting, you need a dedicated housing , which is purchased separately. Positioning matters more than anything else: pointing it along the hallway provides much better coverage than pointing it at a door.
Voice Control Sensor Status with Alexa, Google Home, and SmartThings
You can ask the sensor's status by voice . Once connected to the Zigbee hub , the SNZB-03PR2 becomes visible to voice assistants: it works with Amazon Alexa , Google Home and SmartThings . It's used to know if there has been movement in a room without opening the app—useful when you leave the house and want a quick confirmation, or when you return. The sensor remains a battery-powered Zigbee device : the hub exposes it to the assistant, not the sensor that connects on its own.
Works with Apple Home via Matter Bridge and a compatible Zigbee hub
The sensor enters the Apple Home ecosystem through a Matter Bridge : this is the bridge that brings SONOFF Zigbee devices into Apple Home and allows them to be used in scenes and automations alongside the rest of the system. A compatible Matter hub therefore needs to act as a bridge: the sensor alone does not appear in Apple Home.
Learn more about the Sonoff ZBBridge-U .
Integrates with Open Source Platforms Based on the Zigbee 3.0 Standard
Based on the Zigbee 3.0 standard, the SNZB-03PR2 connects to a wide range of third-party and open-source platforms. This is why a standard sensor is better than a proprietary one: it remains usable even when switching control systems. Available integrations depend on the platform and version, so it's worth checking before building critical automation on top of it.
SNZB-03PR2 and SNZB-03P Comparison: What's the Difference Between the Two Generations?
Compatibility with Sonoff, ZHA and SmartThings Zigbee Hubs
The sensor works with compatible SONOFF Zigbee hubs , the most direct way to connect it to the network. On ZHA and SmartThings, recognition requires a script : it's an extra step, only needed once. We mention this here and not at the bottom because it changes the installation time: if you already use a hub on those two platforms, take this into account before ordering.
Four Steps to Get It Working with eWeLink App
Setup is four steps : download the eWeLink app , scan the QR code , connect the sensor to the Zigbee hub and use it in automations . No wiring or power is required: the sensor is battery-powered . Actual time depends on how well your home Zigbee network is already configured.
* Requires a compatible SONOFF Zigbee hub , sold separately.
Technical Specifications: Range, Detection Angle and Compatibility
Frequently Asked Questions
Does the SNZB-03PR2 work without a hub?
No. It's a Zigbee device: you need a compatible SONOFF Zigbee hub , sold separately. It doesn't connect to your phone on its own.
How far away does it detect motion?
The detection angle is 120° with a radius of 6 meters . Motion is detected within 3 seconds .
Is it possible to prevent it from reactivating continuously?
Yes. The cooldown is adjustable from 5 to 60 seconds : it's the minimum interval between two activations. In a corridor, it's best to increase it.
Is the light sensor separate from the motion sensor?
Yes, it's independent . It measures ambient light on its own, with lux thresholds and a history of up to 6 months . It allows for automations that only trigger in the dark.
Does it work with Apple Home?
Yes, but via Matter Bridge : you need a compatible hub to act as a bridge. The sensor itself doesn't appear in Apple Home.
Does it work with Home Assistant, ZHA, or SmartThings?
It's Zigbee 3.0 and integrates with third-party and open-source platforms. On ZHA and SmartThings, recognition requires a script , which must be run only once during setup.
How do you fix it to the wall?
With magnet , double-sided tape , or screw . For ceiling mounting , a dedicated housing is required, which is purchased separately.
Is it okay in a house with pets?
Yes, it is pet-friendly . How well it works depends on its height and orientation : the further the sensor faces down the passageway rather than down, the less responsive it is to an animal passing underneath.
What is the difference with the SNZB-03P?
The comparison between SNZB-03PR2 and SNZB-03P is in the dedicated image above: the independent light sensor and detection parameters change.
Sonoff-SNZB-03PR2
Data sheet
- Power supply
- CR2477 battery
- Colors
- White
- Material
- PC
- Working temperature
- da -10 a 60
- Working humidity
- 5% - 95% non-condensing
- Voice Control
- Amazon Alexa, Google Home and Siri
- Mobile application
- eWeLink
- Dimensions
- 44x44x65 mm
- Communication Protocol
- Zigbee 3.0
- mcu
- TLSR8656
- Detection range
- Up to 6 meters
- Detection angle
- 120°
- Maximum Communication Distance
- Up to 100 meters
- Battery life
- 3 Years
- Features
- Brightness Measurement
- Works with
- Amazon Alexa
Apple Home (HomeKit)
Google Home
Home Assistant
SmartThings
eWeLink (Sonoff) - Hub required
- Sonoff Zigbee hub (ZBBridge / iHost / NSPanel Pro)
- Ideal for
- Sensors & detection
- Home Assistant integration
- Cloud integration
Zigbee via dongle (ZHA / Zigbee2MQTT)
Specific References
- UPC
- 697903360063
- EAN13
- 6979033600638
- MPN
- Sonoff SNZB-03PR2
Arrivato e installato senza problemi
10/19/2026
Nicolas G.
Arrivato e installato senza problemi Attenzione che il pannello / hub usato sia compatibile oppure alcune funzioni potrebbero non essere disponibili Ad esempio il mio pannello non era aggiornato e il sensore di luminosità non era visualizzato/usato
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Customers who bought this product also bought:
- 120° and 6-meter coverage: the PIR sensor detects motion within 3 seconds of passing.
- 5 to 60 seconds cooldown: the minimum interval between two activations is adjustable to avoid constant retriggers and false alarms.
- Independent light sensor: measures ambient light separately from the PIR, with thresholds set in lux.
- Light history up to 6 months: logs room illumination changes to fine-tune automations using real data.
- Does not work on its own: requires a compatible SONOFF Zigbee hub, sold separately; without a hub it will not connect to the eWeLink app.
- Zigbee 3.0: integrates with a wide range of third-party and open-source platforms, without being locked to a single ecosystem.
- Apple Home via Matter Bridge: a compatible hub acting as a bridge is required; the sensor alone will not appear in Home.
- ZHA and SmartThings: currently require a script for recognition, as documented in the SONOFF Help Center.
- Security scenes: on each intrusion it triggers the alarm on the gateway, sends an app notification, and starts camera recording.
- Three mounting methods: magnetic, adhesive, or screw mounting, so you can reposition it until you find the right angle.
- Ceiling mounting: supported with the dedicated housing, which is sold separately.
- Pet-friendly: as stated by the manufacturer; actual results depend on height and orientation.
Sonoff SenseGuard Motion Gen2 Smart Zigbee Motion Sensor SNZB-03PR2
€15.90
€20.90
Save €5.00Tax included
Read the review
Average rating:
5/5
Number of reviews: 1