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SONOFF PIR3-RF – 433 MHz wireless RF PIR motion sensor

Sonoff PIR3-RF is a smart human motion sensor in Sonoff’s smarthome product line. Connects to other Sonoff smart devices – e.g. lights, relays, sockets controlled by the sensor – and eWeLink app wireless, with 433.92MHz RF (radio frequency) technology via Sonoff RF Bridge gateway.

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Factory SKU ID:
Supported protocols:
RF transmitter (433 MHz)
in stock (30+ pcs)

Sonoff PIR3 is the new smart motion sensor in Sonoff’s smart home product line.

【Motion Sensor & Camera Binding】Alarm notification, by binding a camera, monitor your home on the double insurance.
【Alert Mode/Normal Mode】Two built-in modes which are two different trigger time mechanisms to meet your needs in different scenes.
【Smart Scenes】Set the smart scenes based on your needs, trigger more devices/scenes.
【Easy Installation】3M adhesive or screw mounting (universal joint).
【Note】Batteries are not included in the package.

PIR3-RF connects to other Sonoff smart devices – e.g. lights, relays controlled by the sensor – wireless, with 433.92MHz bridge RF (radio frequency) technology via Sonoff RF Bridge gateway, no need for wiring. Power supply is given by 1 pcs CR2450 1.5 V batteries, (not included).

The motion detector can work with the Sonoff RF Bridge 433, providing alarm message to your phone. Note: PIR3 push notification now can be shared with other accounts.

Features smart scene function, detected motion can trigger multiple eWeLink compatible Sonoff and SmartWise WiFi devices (smart switches, smart relay swithes and smart sockets) via eWeLink app (Note: the sensor does not send a signal to the app on stopping the motion only when motion is detected.)

PIR3-RF has 2 operation modes:

  • Alarm mode: if motion is detected in the detection range, alert is sent every 5 seconds.
  • Normal mode: next alarm trigger is activated only after 60 seconds, not before even if another motion is detected.


The difference with SONOFF PIR2 RF motion sensor is that PIR3-RF has a small and compact size, easy to be used in almost any position to detect the movement.

SONOFF PIR3-RF motion sensor can detect and report motion. When used for your home security system, it can detect the movement within 8M and help identify whether a human or pet is moving around inside your house, and your mobile phone will receive an alert notification. Connect SONOFF camera and you can view who is the intruder. When incorporated into your smart lifestyle, the sensor triggers your light on or off after connecting with SONOFF RF Bridge. You can set a scene that the hallway light is turned on when you enter the door.

With the universal joint, the sensor can be flexible to rotate a full 360°horizontal angle and 90°vertical angle which allows you to adjust the sensor into an optimal angle to view everything in your home (The sensor doesn’t move on its own based on your motion). Another convenience for your home is that you can use the sensor for a position where the movement is not easy to be detected via mounting it in the universal joint, and just rotate the universal joint head to get a wonderful detecting angle. Plus, you can directly stick the sensor on the surface of objects to detect the movement. Just choose one as you like.

PIR3-RF has 2 working modes that alert and normal mode. In the alert mode, the sensor is triggered per 5s when someone enters the detection range. In the normal mode, the next alert trigger is activated if there is no motion detected within 1min after the previous detection.


Product features:

  • Ideal for use at home, office, storehouse, garage, etc.
  • Easy to install without wiring, easy to mount on wall
  • Wireless RF frequency: 433.92MHz
  • Detection distance: ≤8m (Indoor space)
  • Detection angle: 100°
  • Working temperature: -10℃~40℃
  • Working humidity: 10-90%RH (non-condensing)
  • Power supply: 1 pcs CR2450 battery (not included)

Product type:
RF (wireless) infra motion detector
Device power supply:
CR2450 battery (3V)
Operating temperature range:
-10℃ – 40℃
RF transmitter / receiver:
yes (RF transmitter)
Controllable from internet:
yes, connects to the internet through the RF Bridge
Manufacturer smartphone app:
yes, free app: eWeLink (Android, iOS)
Web admin interface:
Cloud mode:
connected to Sonoff or SmartWise RF Bridge: default mode is connecting to the eWeLink Cloud
LAN mode:
REST API support:
MQTT support:
Notification functions:
eWeLink app notification on smartphone for SmartWise RF Bridge
history of alarms available in the app
25 g/pcs
Package offers
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SONOFF PIR3-RF – 433 MHz wireless RF PIR motion sensor
SONOFF PIR3-RF – 433 MHz wireless RF PIR motion sensor