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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Customer Service Guarantee

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 36 reviews
Nagarajan Viswanathan
Unreliable Motion Sensor

After chnaging a new battery, the motion sensor reports battrey level as low in an hour time. The sensor reports motion detected continously from the time the new battery was replaced. This is happening to my 3rd motion sensor in a month time.

We are so sorry for the inconvenience. For the problem, we already sent you an email to confirm the details, please check. If a device problem, we would like to send you the replacement, please don't worry.

Produit super bien

Les résultats de ce produit sont très satisfaisante, il est super bien. J'encourage les gens à le commander pour rendre leur maisons smart.

Excellent, inexpensive device. Good support.

I bought 15 of these to set up Home Assistant motion detection routines in my home. They're great and they *sip* power. Some of the people on here who say that they drain the batteries miss a detail: sometimes, when you pair a sensor, you have to wait for its battery reading to normalize. The device (for whatever reason) takes time to get the reading right. I saw this, waited to see if it steadied, and they all went back to full power. Give it time, these things don't communicate that often so that they save power.

Customer support is excellent. About 2 weeks after I installed the devices, one of mine gave out (honestly, might have been something I did to it during install, I don't know). They sent me another after I showed it not working, at no expense.

These power levels are ~2 months after installation. The devices report once a minute if the state changes. Very pleased.

Juan Carlos Rivera Zapata
Considerable time to arrive, Worst experience!!!!

I boutgh 8 items at may 18:
Since the begining I have problems with this seller. They didn´t advice me until the shipment and after I realized the payment that they must keep out the batteries. Finally I'll must speend an extra amount in my country Bolivia to buy the bateries.
Today june 28, The stuff is still in transit after 40 days from shipment.
The worst experience with this seller.
Take care if you consider put a new order!!!

Before we ship your order, we email you to confirm whether to cancel the order or take out the batteries to ship, because your country has a limitation of the battery devices. If you agree to ship the parcel without batteries, we also refund you the batteries cost. For this order, it is in transit to your country, please kindly follow the shipment and pick up the parcel in time.

Dmitrijs L
Waste of money

Bought 4 pieces. These "MEGA MONITON SENSORs" worked properly 1 week, then started my nightmares. I changed batteries once every week.

We are so sorry for the inconvenience.
Could you tell me more details of the SNZB-03 problem?
Which zigbee hub did you use?
Please kindly show us the logs of the SNZB-03.

Michael Sandall
Great product

Easy to set up.

Robert Nystrom
Sonoff Motion Sensor

These motion sensors work great.
I have them thru out the house and they work every time.

Raffaele M.
Very unreliable

Drops out often and needs to be reset
I bought 3 but constantly but they drops and needs to be re-added to the system.

For the problem, could you try to change the battery to check if the problem still exists or not?
Please try to delete the device and pair it again check if it would help or not

Juan Esteva Morell
Simply Perfect

Added to Home assistant via Sonoff zigbee 3.0 dongle usb and working in just 30 seconds.
Good sensivity and wide angle

Benoit De Vooght
not compatible with Philips Hue

not compatible with the Philips Hue protocol.

SONOFF SNZB-03 - Zigbee Motion Sensor