SONOFF SNZB-03 – Zigbee Motion Sensor


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【Any Motion, Even Visble】An instant alert notification will be sent to your phone whenever the motion sensor is detected. By binding the camera, you can view what’s going on in your home.
【Smart Scenes, Work With WiFi Devices】By simply setting a smart scene to turn on your WiFi smart switch automatically. Make your life smarter.
【Easy Installation & Wider-angle, Long-distance Detection】Using 3M adhesive to easily mount the sensor at your ideal locations. With the detection distance of up to 6M and angle of up to 110°, a better detection area will be covered,
【Low-battery Notification】Replace the battery in time with a notification when the battery life is 10% remaining.
【Note】SNZB-03 can not work with Google Assistant. Zigbee Bridge and batteries are required. Keep a distance of less than 80M between SNZB-03 and Zigbee Bridge (open space).

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Any Motion, Even Visible

Link a camera to the motion sensor and place the sensor almost anywhere home, then you can view what’s going on in your home through the camera on the sensor page of APP.Wider-angle & Long-distance Detection

Can provide detection distance of up to 6M and angle of up to 110°when the sensor is working, which ensures the suspicious motion near your house is detected even earlier.Smart Scene, Awakes up Your Home

Want the light to turn on automatically when you go into the hallway? Simply set a smart scene to active your home in the action.Intelligent Security, Simple Installation

Simply use our included 3M adhesives to get the motion sensor mounted in your ideal locations just in seconds.Low-battery Notification

You will get a notification of low-battery level when the battery life gets 10% remaining.

SONOFF SNZB-03 Zigbee Smart Zigbee Motion Sensor Detector Sensor Smart Home Security Work With SONOFF ZBBridge via eWeLink APP

Note 2: SNZB-03 must be used with ZBBrigdge.

If your concern is not only about home security but about using motion to turn on or off the light, well, SONOFF SNZB-03 maybe makes you feel amazing.

This Zigbee motion sensor is an extra-handy smart device for placing anywhere in your home to detect motion and trigger alarms. That means the sensor will send an instant alert notification to your mobile phone whenever the motion is detected if this security system is armed. If you have a SONOFF ZBBridge, you can connect the sensor to it to activate Wi-Fi devices, not merely Zigbee devices. For example, you can set a scene for your living-room light so that it will automatically turn on when you walk through the living-room.

The new camera feature is used to make you know who is approaching your home and capture the video ever earlier than before. Boasts 110°view field and 6m detection rang and you can early receive an alert message of someone’s presence, accordingly taking measures to reduce the possibility that your house is threatened. Share control is available for multiple users to check and monitor your home together. Easy and tool-free installation, 3M adhesive installation significantly saves your time. Powered by the battery which is convenient to stick it on any place that you want to monitor.



Additional information

Weight 27 g
Dimensions 38 × 33 × 52 mm

Product Type

ZigBee Motion Sensor



Wireless protocol

Zigbee (IEEE 802.15.4)





Certified Compliance


Works With

Customer Reviews

Based on 25 reviews
Motion Sensor works great

Motion sensor is super easy to add to the network

Tan Wen Jie
Battery completely drained within 1 month

The battery completely drained within 1 month.

Very good Balance

These motion sensors are very good at reliably triggering. Only rarely do they report imaginary movement but have never missed a movement. Completely contrast to the door./Window sensor sucks. This is the best sensor. Temp/Him is 2nd, Button 3rd, Door/Window 4th.

Does not support setting hold duration

Replaced it with Ikea motion Sensor

We did not developed this feature for the SNZB-03, sorry about this, for more info about the SNZB-03, please check your inbox.

Drops out and needs to be reset

I bought 4 of these.
One died within a month or so.
Two work well.
One constantly drops and needs to be re-added to the system.
I have to re-create my custom scene every time it drops.
Due to my problems with other Sonoff items and the terrible customer service, I'm just going to throw them out.
It's not worth your time to try to trouble shoot it with them.

Great sensitivity.

I created few smart scenes like switch on the light when I open the door and everything has been working smoothly. Also, they are very reasonably priced.

Tomislav Stiva
Givig up and replacing to some other manufacturer

First I bought couple of them, and they worked ok. Sometime they would drop off the network, at that moment I was ok with that. Then i bought 10 more items. The dropping off network become irritating. And after some time 4 of them completely stop responding, didn't manage to repair them (unusable - broken).
Also they report random movement when there is nobody at home, so they were unreliable and I was never sure is the detected movement real or random false reading.

Hello, Stiva. We have already contacted you for further investigation about the 'stop working problem'; please try to near the sensor and make sure there is no wall impairing the signal. please check your email and find the solution provided by us, and we hope to fix your problem asap.

Karl Tyrrell
Works with Home Assistant

Integrated effortlessly into Home Assistant using Zigbee.

Jason A Barbier
Solid cheap indoor PIR sensor

The sensor itself works great as advertised in indoor settings. Its a pretty standard PIR motion sensor that connects via zigbee and has a fast response time. Im using it to tuen my office lights on as I walk in in the morning and its been pretty solid l.

The Robertsons

I recently installed a couple of these to automate hallway lighting. I have two as this hall has a 90' turn and I wanted the lights to come on no matter which direction people entered. They have good field of view and are simple. Easy to setup in ewelink, easy to use and seem reliable to trigger. They are smaller than I imagined form the picture which is good. I did not want a large device drawing attention to itself. Small and inconspicuous was the goal. So far, these have been perfect. I plan to purchase and incorporate more.

SONOFF SNZB-03 - Zigbee Motion Sensor
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